OSCON Speakers


Brian Aker
Brian Aker is director of architecture at MySQL and works on the MySQL Database Engine and Apache, MySQL, and Perl modules, which include mod_layout and the Apache streaming services module mod_mp3. In the past he has been involved with projects for the Army Engineer Corps, The Virtual Hospital, and Slashdot.

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John Anthony
Speaker biography coming soon.

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Matt Asay
Matt Asay is VP of Business Development for Alfresco. Prior to Alfresco Matt co-founded Novell's Linux Business Office, founded the Open Source Business Conference, and ran embedded Linux vendor Lineo's Network & Communications division. Matt earned a JD from Stanford Law School, where he spent two of his three years studying open source licensing under Professor Lawrence Lessig. Matt blogs for InfoWorld.

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John Paul Ashenfelter
John Paul Ashenfelter is CTO and Founder of TransitionPoint.com, where he builds web-based business applications for startups and small companies. He has written the aboutSQL column for O'Reilly's onLAMP.com site, written several books, and speaks about data warehousing and other topics at open source conferences.

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Andy Astor
Speaker biography coming soon.

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Calvin Austin
Calvin Austin is an architect at Spikesource.com. He previously led the J2SE 5.0 release at Sun Microsystems and also led the first commercial Java on Linux port. Austin is an ex-editor of JDJ and co-authored Advanced Programming for the Java 2 Platform, and frequently speaks at many conferences and user groups.

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Marcus Börger
Marcus Börger is a freelancer located in Germany who specializes in C/C++, databases, UML, XML, and of course PHP. To the PHP community, he is also known as helly. He is one of the core developers focused on the new OO features of PHP 5 and Zend Engine 2. Börger has 'hacked' around on all kinds of stuff for over 15 years and is currently working for Ford Motor Company.

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Mitchell Baker
Mitchell Baker has been the general manager of the Mozilla project (officially known as its chief lizard wrangler) since 1999. The Mozilla project strives to create great software and maintain choice and innovation in key Internet applications, such as its flagship Mozilla Firefox and Mozilla Thunderbird products. It is one of the largest open source software development projects in existence. The Mozilla project combines dedicated volunteers, a set of paid contributors and some degree of engineering management. Baker focuses on making all these pieces work together. With the formation of the Mozilla Foundation in 2003, Baker also took on the role of president of the Mozilla Foundation.

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Terry Barbounis
Speaker biography coming soon.

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Wayne Beaton
Wayne Beaton is employed by The Eclipse Foundation where he works as an evangelist, spreading the word and helping folks adopt Eclipse technologies. Beaton has extensive experience in object-oriented software development and is a strong proponent of refactoring, unit testing, and agile development methodologies.

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Brian Behlendorf
Brian Behlendorf founded CollabNet, with O'Reilly & Associates, in July 1999. The company provides tools and services based on open source methods. Before launching CollabNet, Behlendorf was co-founder and CTO of Organic Online, a Web design and engineering consultancy located in San Francisco. During his five years at Organic, Behlendorf helped create Internet strategies for dozens of Fortune 500 companies. During that time, he co-founded and contributed heavily to the Apache Web Server Project, co-founded and supported the VRML (Virtual Reality Modeling Language) effort, and assisted several IETF working groups, particularly the HTTP standardization effort. Before starting Organic, Behlendorf was the first Chief Engineer at Wired Magazine and later HotWired, one of the first large-scale publishing Web sites.

Behlendorf is President of the Apache Software Foundation. He also serves as a Technical Advisor to Critical Path (CPTH) and Topica.

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Artur Bergman
Artur Bergman spends most of the time achieving the impossible. He has co-founded four companies ranging from internet-based stock exchanges to content management system solutions. In the open source world, he is mostly involved in Perl 5 development process where he led the development and stabilization of the threading system for the Perl 5.8 release.

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Josh Berkus
Josh Berkus is a PostgreSQL Core Team member and has been designing database applications for nine years, mostly through his independent consultancy in San Francisco. He is a SQL expert and a PHP and Perl abuser, and will happily talk your ear off about data integrity and relational design if given half a chance. He was recently published in Linux Magazine.

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David Bitton
David Bitton is the founder and CEO of "Wengo", an innovative SIP-based communication service provider from France. In 2000, with his experience in large telcos and information technology, he started "Oreka", an ad-driven ISP. In 2005, David initiated the VoIP venture that later led to the OpenWengo project and the release of WengoPhone source code under a GPL license.

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Rich Bowen
Rich Bowen is a member of the Apache Software Foundation, where he works on the documentation of the Apache Web Server. He's also the web guy at Asbury college (asbury.edu) in Wilmore, Kentucky.

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Jeremy Boynes
Jeremy Boynes joined Gluecode Software with over 20 years experience in enterprise computing. He is a founding partner of Core Developers Network, a consultancy group of leaders in the open source Java community who focus on the corporate Enterprise and targeted expertise in the creation, execution, and development of mission-critical open source projects and infrastructure.

Prior to Gluecode, he successfully led multimillion dollar projects for Cisco Systems, BT, and the UK Employment Service as technical architect for Sequent Computer Systems. As chief architect for Bravanta and for Netmosphere, he played roles in ensuring their success by leveraging open source technologies. Boynes is actively involved in the Apache Geronimo J2EE project, as well as projects at OpenEJB and ObjectWeb. His technical specialties include database systems and application security. He earned his master's degree in electrical sciences from the University of Cambridge.

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Dave Bradley
Speaker biography coming soon.

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Christopher Browne
Christopher Browne is a database administrator with Afilias Canada in their Operations/Data Services group. He has been involved with various registry data conversions, as well as the operations of Afilias' registry databases and replication systems. Past involvements include SAP R/3 data conversions and systems development.

In the open source community, Browne has been involved with development of financial applications including cbb, GnuCash, and SQL-Ledger, and most recently the Slony-I replication system.

Browne holds a Bachelor of Mathematics from the University of Waterloo as well as a Master of Science degree in Systems Science from the University of Ottawa.

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Avi Bryant
Avi Bryant is the co-founder of Smallthought Systems Inc. He is best known for creating Seaside, the pioneering continuation-based web framework recently profiled in O'Reilly's "Beyond Java". He is active in the Squeak Smalltalk community, where he maintains packages for version control, web development, and database access. His current focus is on building flexible end-user tools for collaborative data modelling.

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Michael Buffington
Michael Buffington has been an entrepreneur and web application developer for over 10 years. Buffington cofounded Price.com Inc. in 1998, authored an advanced level book on Macromedia's ColdFusion, and has been developing clever web applications for companies like Xerox, Adaptive Path, Robot Coop, and Federated Media Publishing.

Most recently, Buffington stopped being serious and has become known in the Ruby on Rails community for developing and managing the open source llor.nu multiplayer game, a highly addictive and massive game with some very simple underlying principles.

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Tim Bunce
Tim Bunce has been a Perl5-porter since 1994, contributing to the development of the Perl language and many of its core modules. He is the author and maintainer of the Perl DBI module.

He is the founder and CTO of Data-Plan Services, a Perl, database, and performance consultancy with an international client base. He is co-author, along with Alligator Descartes, of Programming the Perl DBI, the definitive book on DBI, published by O'Reilly Media.

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David Bushong
David Bushong is a senior web engineer with the AvantGo division of iAnywhere, Inc. He was the lead engineer behind the recent AvantGo Travel Tab and RSS features. In his spare time he likes to play with, explore, and exploit new technologies, usually web-related.

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Nicolas Cannasse
Nicolas Cannasse leads research and development at Motion-Twin, a French Flash web-based games company. He has been working on several compilers and design of programming languages. In order to improve development on the Flash platform, he released MTASC (Motion-Twin ActionScript 2 Compiler) under GPL. He is also an active member of the OCaml programming language community.

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Brian Capouch
Brian Capouch is an assistant professor and chair of the Department of Computer Science at Saint Joseph's College in Rensselaer, Indiana. He also operates a small wireless ISP. He has taught two college classes and done presentations on VoIP and Asterisk. He is restoring a 152-year-old railroad hotel.

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Ugo Cei
Ugo Cei is COO at SourceSense, a startup focused on open source software development with a strong international focus. Cei has a Ph.D. in Informatics Engineering from the University of Pavia, Italy, more than 15-years experience working in the software field, and is a committer for the Apache Software Foundation. While not busy developing software, he spends his time reading books, blogging at http://agylen.com/, skiing, or simply staying at home with the family.

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Terry Chay
Terry Chay was the only Mac user at Plaxo, where he develops the web-based version of their product (they tolerate him because he stinks at CounterStrike). In past lives, he developed the communication layer between an internet-enabled home control device and the web browser, voice portals, PDAs and cell phones via SOAP in PHP, and the first internet travel search engine, also in PHP. He gives seminars on PHP development, which really is just a veiled excuse to play with Keynote. He also thinks it’s pretty cool that he can boast at least six years of Ajax experience in his resume when it has only been around for two of them.

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Neelan Choksi
Neelan Choksi is a senior director at BEA Systems in the Product group. At BEA, Neelan is leading the effort to create the Open JPA project from on the code base of the closed source BEA Kodo product. Neelan joined BEA with the acquisition of SolarMetric where he was the president.

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chromatic
chromatic is the technical editor of the O'Reilly Network. He edits ONLamp.com, the Linux Dev Center, and Perl.com. In his spare time, he is a prolific CPAN developer, a member of the Perl 6 design team, and a contributor to Perl 5, Parrot, and Pugs.

chromatic is also the author or co-author of several books, including Perl Testing: A Developer's Notebook (with Ian Langworth) and Perl Hacks (with Damian Conway and Curtis "Ovid" Poe).

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Mike Clark
Mike Clark is an independent consultant, author, trainer, and programmer. He's the co-author of Agile Web Development with Rails, author of Pragmatic Project Automation, and co-teaches Pragmatic Studio: Ruby on Rails. He helped build one of the first commercial Rails applications and continues working on other Rails projects through his company, Clarkware Consulting.

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John Coggeshall
John Coggeshall is a Technical Consultant for Zend Technologies where he provides professional services to clients around the world. He got started with PHP in 1997 and is the author of three published books and over 100 articles on PHP technologies with some of the biggest names in the industry such as Sams Publishing, Apress and O'Reilly. John also is a active contributor to the PHP core as the author of the tidy extension, a member of the Zend Education Advisory Board, and frequent speaker at PHP-related conferences worldwide. His web site, http://www.coggeshall.org/ is an excellent resource for any PHP developer.

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Ben Collins-Sussman
Ben Collins-Sussman is a software engineer at Google, where he works with Brian W. Fitzpatrick to promote open source software both inside and outside the company. Previously, they worked at CollabNet as founding developers of Subversion, where they co-authored the O'Reilly book Version Control with Subversion.

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Damian Conway
Damian Conway holds a Ph.D. in Computer Science and is an associate professor at Monash University, Australia. A popular speaker and trainer, he is also the author of the books Object Oriented Perl and the forthcoming Perl Best Practices, and of numerous well-known CPAN modules. He runs an international IT training company--Thoughtstream--that provides programmer education from beginner to masterclass level throughout Europe, North America, and Australasia. Most of his spare time is spent working with Larry Wall on the design, prototyping, and explanation of Perl 6.

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Neil Conway
Neil Conway is an undergraduate student at Queen's University in Kingston, Ontario. He has been a PostgreSQL developer since 2001, and has worked on PostgreSQL as an employee of both Red Hat and Fujitsu. His current focus is the Slony II replication project, in collaboration with Gavin Sherry and others. Other interests include programming languages and compilers, static analysis, model checking, and operating systems.

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Kees Cook
Kees Cook has been working with open source since 1994, and is employed as the senior network administrator at OSDL. He helps maintain the Linux Kernel mirrors on kernel.org, and is a developer for Inkscape.

He has written various utilities including GOPchop and Sendpage, and has contributed patches to various projects including Wine, MPlayer, OpenSSH, and the Linux Kernel. He also spends way too much time playing with video formats and tweaking his MythTV machine.

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Danese Cooper
Danese Cooper has a 15-year history in the software industry and has long been an advocate for transparent development methodologies. Cooper worked for six years at Sun Microsystems, Inc. on the inception and growth of the various open source projects sponsored by Sun (including OpenOffice.org, java.net and blogs.sun.com). She was Sun's chief open source evangelist and founded Sun's Open Source Programs Office. She has unique experience implementing open source projects from within a large proprietary company. She joined the OSI Board in December 2001 and currently serves as Secretary & Treasurer. In March 2005, Cooper joined Intel to advise on open source projects, investment and support. She speaks internationally on open source and licensing issues.

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Mark Cox
Mark Cox manages the Red Hat Security Response Team. Over the last 11 years, Cox has developed software and worked on the security teams of some of the most popular open source projects including Apache httpd, mod_ssl, and OpenSSL. Cox is a founding member of the Apache Software Foundation and the OpenSSL project, and a board member of the Mitre Common Vulnerabilities and Exposure project.

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Russ Danner
Speaker biography coming soon.

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Scott Davis
Scott Davis is a senior software engineer at OpenLogic. He is the co-author of JBoss At Work (O'Reilly), quite possibly the world's first agile J2EE book. He is also responsible for Google Maps API: Adding Where to Your Applications (Pragmatic), and the forthcoming Pragmatic GIS (Pragmatic).

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Benjamin Day
Benjamin Day is an independent consultant specializing in the design and development of web and Windows database applications using Microsoft .NET technologies. With 9+ years of consulting experience, he has worked with clients such as Fidelity Investments, the Massachusetts Department of Revenue, Deloitte Consulting, and Ceridian Lifeworks. When not developing software, Day plays piano with a Boston-based jazz trio and is an enthusiastic restaurant, food, beer and wine buff. He can be contacted via www.benday.com.

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Nitesh Dhanjani
Nitesh Dhanjani is a manager at Ernst and Young’s Advanced Security Centers, and is the author of O’Reilly’s new book, Network Security Tools: Writing, Hacking, and Modifying Security Tools. He is also the author of Hacknotes: Unix and Linux Security, published by Osborne McGraw-Hill, and a contributing author to the bestselling security book, Hacking Exposed 4. He is a frequent speaker at security conferences such as Blackhat, Hack in the Box, and OSCON.

Prior to Ernst & Young, Dhanjani was a senior consultant at Foundstone where he contributed to and taught Foundstone's "Ultimate Hacking: Expert" and "Ultimate Hacking" security courses. Dhanjani graduated from Purdue University with both bachelor's and master's degrees in computer science.

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Chris DiBona
Chris DiBona is the open source programs manager for Mountain View, California-based Google, Inc. Before joining Google, DiBona was an editor/author for the popular online web site slashdot.org. He is an internationally known advocate of open source software and related methodologies. He co-edited the award winning essay compilation Open Sources, writes for a great number of publications, and speaks internationally on software development and digital rights issues.

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Dan Diephouse
Dan Diephouse is a developer and entrepreneur. Currently he is kept busy running a web service consulting company, Envoi Solutions, and a logistics and supply chain software business, Design Spectrum. In the open source world, Diephouse started the XFire project http://xfire.codehaus.org at the Codehaus, a fast, open source Java SOAP stack with an intuitive API. He is also a committer on the Apache ServiceMix, XBean, and Continuum projects.

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Mark-Jason Dominus
Mark Dominus has been programming in Perl since 1992. He is the author of Higher-Order Perl: Transforming Programs with Programs; the Memoize, Text::Template, and Tie::File modules; and the 'perlreftut' man page. He is an occasional contributor to the Perl core, and won the 2001 Larry Wall award for Practical Utility.

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Gavin Doughtie
Gavin Doughtie writes software for DreamWorks Animation. Previously, he worked on multiuser games for Sony, web sites for idealab, and the Picasa photo management application. Doughtie enjoys exploring all the places where technology and creativity meet. He lives with a beautiful blogger and two brilliant sons in Pasadena, California.

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Matt Drew
Matt Drew is a senior software developer at Array BioPharma Inc., a pharmaceutical company. He has thirteen years of experience developing software solutions and has been using Python for five years. He is currently working on decision support and data mining solutions using Python.

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Randy Dunlap
Randy Dunlap has worked on Linux since 1999 in various roles at Intel, OSDL, and Oracle. He was the USB subsystem maintainer for one year and the Kernel Janitors patch maintainer for one year. Most recently he has been attacking power management for SATA and PATA hard drives as well as various other patches. He has a backlog of Linux work that he would like to complete.

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Robin Dunn
Robin Dunn, the creator and maintainer of wxPython, has been working in the software industry for 18 years on a wide variety of applications. He discovered both wxWindows and Python in 1995 while looking for a cross-platform toolkit and has never (willingly) looked back. Dunn was awarded the ActiveState Programmers\u2019 Choice Award at the 2002 O\u2019Reilly Open Source Convention. He is working for the Open Source Applications Foundation, improving wxPython for use in their flagship product, Chandler.

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Curtis Edge
Speaker biography coming soon.

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Brian Ellin
Brian Ellin is a full time software engineer at JanRain Inc, developing open source OpenID libraries and related technologies. He is author of the Ruby OpenID library, and writes for and helps maintain the community developer site openidenabled.com. He is interested in building web applications that empower users atop a light-weight Internet identity layer, and using OpenID to merge online communities. Brian holds a B.S. in Computer Science from Clemson University, and lives in Portland, Oregon.

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Justin Erenkrantz
Justin R. Erenkrantz is currently a Ph.D. student at the University of California, Irvine, in the School of Information and Computer Science. He is also a member of the Apache Software Foundation and has contributed to the development of the Apache HTTP Server, Apache Portable Runtime, flood, serf, and Subversion.

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J Aaron Farr
J Aaron Farr is a member of the Apache Software Foundation. Having served as VP of Apache Avalon and Apache Excalibur, he is currently mentoring the Open For Business project through Apache's incubation process. To pay the rent he's worked as a J2EE and Eclipse RCP software engineer at Global 500 companies.

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Obie Fernandez
Obie Fernandez is a senior consultant at ThoughtWorks, coaching technology teams tasked with delivering critical projects using Agile development techniques and the latest hot technology such as Ajax and Ruby and Rails. Fernandez enjoys writing and evangelizing; besides a popular weblog, he also serves as series editor for the Addison Wesley Professional Ruby Series, published by Prentice Hall PTR.

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Lee Fisher
Lee Fisher was born a Unix/VMS system admin, then grew up at Microsoft, working in many roles in many teams in the systems divisions, including working on NT core team, the Porting Lab, and most recently the .NET Framework team. Formerly a kernel person, he currently lives way up in user-mode, working on managed or interpreted code which interacts with users. He also runs Huckleberry Software, a small shareware and consulting shop.

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Brian W. Fitzpatrick
Brian W. Fitzpatrick is a software engineer at Google, working on their open source efforts. Prior to that, Brian worked for CollabNet on Subversion and related version control tools. He also worked at Apple as a senior engineer in the education and professional services divisions. He is a member of the Apache Software Foundation, a Subversion developer since 2000, and a co-author of the O'Reilly book Version Control with Subversion.

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Karl Fogel
Speaker biography coming soon.

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Neal Ford
Neal Ford is an application architect at ThoughtWorks, a global IT consultancy with an exclusive focus on end-to-end software development and delivery. He is the designer and developer of applications, instructional materials, magazine articles, courseware, video/DVD presentations, and author of 3 books, including Art of Java Web Development (Manning 2003).

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Michael J. Freedman
Michael J. Freedman is a graduate student in computer science at MIT. His research interests focus on cryptography and computer/network security, especially in the realm of distributed systems. He is a principal researcher of the Free Haven project, and has worked at Zero-Knowledge Systems implementing an electronic cash architecture.

In his spare time, Freedman enjoys climbing, mountaineering, and other outdoor pursuits, much to the concern of family and friends.

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Wez Furlong
Wez Furlong is senior systems engineer at OmniTI, Inc. where he works on the fastest MTA on earth. In the PHP world, Furlong is a PHP Core developer, the so-called "King of PECL," the PHP Extension Community Library, and helps to maintain the php.net server infrastructure. Furlong has authored and maintains a number of PHP extensions, and designed and implemented the PHP Streams layer. Furlong currently resides in Columbia, Maryland with his wife, son, and two dogs.

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Calvin Gaisford
Calvin Gaisford is the maintainer of Novell's iFolder Project. His current focus on the project is developing a working API and integrating search with indexing services like Lucene. Gaisford wrote the Linux and OS X iFolder clients along with many of the web and IPC technologies used in iFolder. In his free time, he can be found hacking Palm OS, OSX, or Windows Mobile software, running, or taking "the boys" somewhere in the Utah mountains in his Rubicon Jeep.

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Sergei Golubchik
Sergei Golubchik started developing MySQL fulltext search in 1998 for his own project, and since March 2000 has been working at MySQL AB, touching MySQL code here and there and leaving his fingerprints all over the place.

In addition to being a primary architect of the MySQL Fulltext Search and doing other development tasks, he also takes care of security@mysql.com and performs reviews of the new code. Originally from the Ukraine, he now lives in Germany.

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Zak Greant
Zak's love of Free Software and Open Source is turning him into a penguin. The only visible changes (so far) are a gradual accumulation of blubber, a loss of hair (which he hopes is the prelude to feather growth) and a growing preference for raw fish. When not practicing how to waddle or wear a tuxedo, he works with eZ systems AS as their managing director for North America, with the Mozilla Foundation on various community issues, and volunteers with the Free Software Foundation's Compliance Lab.

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Stuart Halloway
Stuart Dabbs Halloway is a co-founder of Relevance, LLC. He is the author of Component Development for the Java Platform. Halloway regularly speaks at industry events including the No Fluff, Just Stuff Java Symposiums and the Pragmatic Studio.

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Kaliya Hamlin
Kaliya Hamlin is network director of Planetwork, connecting people and projects at the intersection of IT and social/environmental benefit. Hamlin (a.k.a. IdentityWoman) is a community leader in the field of user-centric identity, has facilitated the open space Internet Identity Workshops, and is active in the Drupal community and participatory conferences such as camps, usability sprints, penguin days, and the like.

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Robert Hansen
Robert Hansen is a doctoral student at the University of Iowa, doing research in electronic voting and secure software engineering under Dr. Doug Jones.

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Perrin Harkins
Perrin Harkins is a senior engineer at Plus Three, an open source-oriented consulting company. His prior experience includes development at large web-based businesses like eToys.com and CitySearch.com. He has published articles on perl.com and contributed to several books about web development. He is a frequent participant in open source projects, and a member of the Apache Software Foundation.

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Jeffrey Harris
In an attempt to avoid the inevitable bliss of life in the Bay Area, Jeffrey left the University of Michigan's physics program and joined Dancing Rabbit where he learned a whole lot about building egalitarian community. Now he's succumbed to the attraction of California, lives in Berkeley and loves working for the Open Source Applications Foundation.

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Kevin Henrikson
Kevin Henrikson is a principal engineer at Zimbra. He splits time hacking on Zimbra's Ajax collaboration suite and managing developer relations with Zimbra's open source community. Previous to Zimbra Henrikson was at Openwave, an ISP and mobile carrier software provider.

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Val Henson
Val Henson is a Linux kernel developer who took a brief foray into Solaris while working on the recently released Zettabyte File System (ZFS). Her duties at Intel include making the Linux kernel better and encouraging women in open source. She is the maintainer of the TCP/IP Drinking Game and a proud member of LinuxChix.

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Rick Herman
Speaker biography coming soon.

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Joseph Hill
Joseph Hill is the creator of the Mono Live CD, and administrator of the GotMono Mono user community. He is also the maintainer of several Open Source ASP.NET applications converted to run with Mono and PostgreSQL. Among these are the ASP.NET Forums and the IBuySpy Portal applications, which serve as reference examples for building cross-platform data-driven web applications with Mono.

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Rick Hillegas
Rick Hillegas is a senior staff engineer at Sun Microsystems and a committer to Apache's open source Derby database. Before coming to Sun, Hillegas worked on SQL interpreters for a number of database companies, including Ingres and Sybase. He is a co-inventor of Cloudscape's LUCID data synchronization model and contributed significantly to the Cloudscape database engine from its startup days through its acquisition by Informi.

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Steve Holden
Steve Holden has a lifetime of experience in information technologies and has supported open source software for twenty years. He is a director pf the Python Software Foundation, chaired the first three PyCon conferences, and is the author of Python Web Programming

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James Howison
James is a doctoral student at the Syracuse University School of Information Studies in New York, on walkabout from Australia. He has been researching free and open source software development for the past four years, as part of the http://floss.syr.edu project, funded by the US National Science Foundation. He has explored social networks, coordination and his dissertation research explores best practices for collaborating with sometimes unreliable partners, including distributed volunteers.

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Amy Hoy
Amy Hoy is the author of a Ruby on Rails- and design-oriented blog, Slash7. She brings five years of web development experience and seven years of web design experience to her job as web interface design lead for Ecelerity, an enterprise-class MTA developed by OmniTI, Inc., in Columbia, Maryland.

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Brian Ingerson
Ingy döt Net is a hacker with more current projects than years to complete them. Some of his more well-known creations are Inline.pm, Kwiki, and YAML. He is currently homeless, traveling worldwide from hackathon to hackathon.

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Joichi Ito
Joichi Ito is the founder and CEO of Neoteny (www.neoteny.com), a venture capital firm focused on personal communications and enabling technologies. He has created numerous Internet companies including PSINet Japan, Digital Garage, and Infoseek Japan. In 1997 Time Magazine ranked him as a member of the CyberElite. In 2000 he was ranked among the "50 Stars of Asia" by Business Week and commended by the Japanese Ministry of Posts and Telecommunications for supporting the advancement of IT. In 2001 the World Economic Forum chose him as one of the 100 "Global Leaders of Tomorrow" for 2002. He recently joined the board of Creative Commons, a non-profit devoted to expanding the range of creative work available for others to build upon and share.

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Jorg Janke
Jorg Janke is the founder and principal of the Compiere ERP & CRM open source project. As the driving force behind Compiere's success, Janke has more than 20 years of combined business and technical experience, holding all Sun Java and Oracle DBA certifications. Under Janke's leadership, Compiere, Inc. provides stewardship, development, support and training for the company's products as a key part of the overall support provided by Compiere's 50+ partners throughout the world. Before founding Compiere, Janke was director of enterprise systems in Oracle's Application Development Division (Redwood Shores, California) and manager of business applications at the EMEA HQ of Unisys (London). Previously, Janke created an application for the retail and distribution markets and later joined ADV/Orga, the company from which SAP licensed its first version. Janke holds a B.A. in Accounting and an M.B.A. from the University of Sussex, United Kingdom.

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Jeremy Johnstone
Jeremy Johnstone is a PHP developer for Yahoo! Inc. He currently is working on porting the Address Book property to PHP. Prior experience includes being the Lead PHP Developer for Cerberus Helpdesk as well as being the developer who rewrote Hotscripts.com from the ground up in PHP. He is also a familiar face at the International PHP Conference.

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Avi Kak
For several years now, I have taught award-winning courses at Purdue on object-oriented programming and object-oriented scripting. I am the author of "Programming with Objects" published by John-Wiley in 2003. I am also the author of soon-to-be-published "Scripting with Objects"

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Jacob Kaplan-Moss
Jacob Kaplan-Moss is one of the lead developers of Django. At his day job, he's the lead developer for the Lawrence Journal-World, a locally-owned newspaper in Lawrence, KS where Django was developed. At the Journal-World, Kaplan-Moss hacks on a number of sites including lawrence.com, ljworld.com, and kusports.com, and is continually embarrassed by the multitude of media awards those sites win.

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Bill Karwin
Bill Karwin has been a software developer, trainer, and technical writer since 1988. He is widely known for his talent for explaining complex topics and practical techniques with accuracy and a little humor. He has spoken at conferences and meetings of user groups in the U.S., Europe, and Australia.

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Arthur Keller
Dr. Keller is Board Secretary and Founder of OVC (Open Voting Consortium), chair of the Executive Committee of VSPR (Voting Systems Performance Review), and on IEEE Standards Committees P1583 and P1622 on voting systems. He advises startups and expert witness on patent cases in such areas as databases and electronic commerce as Managing Partner of Minerva Consulting.

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Sheeri Kritzer
Sheeri Kritzer has a master's degree in computer science specializing in databases from Brandeis University. She has background as a systems administrator; has worked with Oracle, Sybase, DB2, Solaris, RedHat/Fedora, AIX, and HP-UX. Unstoppable as a volunteer and activist since age 14, Kritzer founded and organizes the Boston, Massachusetts, USA, MySQL Meetup group.

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Greg Kroah-Hartman
Greg Kroah-Hartman is the current Linux kernel maintainer for more driver subsystems than he wants to admit, along with the driver core, sysfs, kobject, kref, and debugfs code as well as being one half of the -stable kernel team. He also started the udev project, and is the co-author of the O'Reilly book, Linux Device Drivers, 3rd Edition. He currently works for SuSE Labs / Novell, doing various kernel related things.

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John Lam
John Lam is a long-time .NET wonk who has recently fallen in love with Ruby. Not wanting one without the other, he's building a bridge between Ruby and the CLR. To feed his family, Lam spends his days helping ObjectSharp's customers build better software, faster. Remembering where he came from, Lam maintains an homage to COM at http://www.iunknown.com.

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Charles Lamb
Charles Lamb is a developer for Oracle (formerly of Sleepy Cat Software) working on the Berkeley DB Java Edition. He has worked with DBMS internals and applications for over 20 years and was a founder at Object Design, an object database company. He has also worked with Java since the JDK 1.0 and has presented at JavaOne twice.

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Robert "r0ml" Lefkowitz
r0ml is an software architect and systems designer with over thirty years of experience. For two decades, r0ml worked on Wall Street, developing market data, trading, risk management, and quantitative analysis systems. More recently, as chief technical architect at AT&T Wireless, he drove the improvement of their CRM, ERP, commission, and data warehousing systems. Over the last several years, r0ml has become increasingly interested in open source software strategy at large enterprises, and is a frequent speaker on the topic.

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Arjen Lentz
Arjen Lentz is community relations manager at MySQL AB, frequently speaking at conferences, and hanging out with MySQL users anywhere. In addition, he teaches MySQL training courses in Australia and New Zealand. Previously, Lentz worked in the MySQL Documentation team.

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Rasmus Lerdorf
Rasmus Lerdorf is known for having gotten the PHP project off the ground in 1995, the mod_info Apache module and he can be blamed for the ANSI92 SQL-defying LIMIT clause in mSQL 1.x which has now, at least conceptually, crept into both MySQL and PostgreSQL. Prior to joining Yahoo! as an infrastructure engineer in 2002, he was at a string of companies including Linuxcare, IBM, and Bell Canada working on Internet technologies.

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Howard Lewis Ship
Howard came up through the ranks writing customer support software in PL/1 for Stratus computer before moving on to NeXTSTEP and Objective-C, then settling in to Java. He is the creator of the Apache Tapestry and HiveMind projects, and is an independent consultant specializing in Tapestry training. He lives in Portland, OR with his wife Suzanne, a novelist.

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Robert Lord
Rob Lord is an Internet digital media geek, SET player and occasional gardener. Rob was previously founder and CEO of IUMA (acquired by Universal Vivendi), VP of Web Technologies at N2K (acquired by BMG), General Manager of Nullsoft (acquired by AOL) and co-founder/CEO of Mediacode (acquired by Yahoo!). Rob was most recently Director, Product Manager for the Y! Music Engine at Yahoo!

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Geir Magnusson
tbd

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Martin Maly
Martin Maly is a developer on the Common Language Runtime team at Microsoft. He is working on the development of IronPython as well as on a broader effort to further improve the support for dynamic and scripting languages within the .NET platform.

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Alex Martelli
Alex Martelli is Uber Technical Lead at Google, Inc. Martelli holds a laurea in Ingegneria Elettronica from Bologna University. He wrote Python in a Nutshell, and also co-edited the Python Cookbook. He's a member of the Python Software Foundation, and won the 2002 Activators' Choice Award. Martelli spent 8 years with IBM Research, earning three Outstanding Technical Achievement Awards; twelve as senior consultant (Win32, Fortran, C, C++, Java, etc), think3 inc; and three as a Python freelance consultant, mostly for AB Strakt. He has taught Programming, Numerical Computing, and OO Design at Ferrara University and other venues.

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Craig McClanahan
Craig McClanahan is currently Architect for Java Studio Creator, an IDE for graphically assembling web applications based on JavaServer Faces components. Previously, he was co-specification lead for JavaServer Faces 1.0 (JSR-127). Craig was also the original creator of Struts, and also original developer of the Shale Framework that extends JavaServer Faces.

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Dayne Medlyn
Dayne Medlyn is a solutions engineer in Hewlett-Packard’s Open Source and Linux Organization. As an expert in software test engineering, data center engineering, and application integration, he has engineered network service application testing, Linux distribution testing, open source solutions and testing, data center backup solutions, data center storage solutions, and data center SAN designs.

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David Mertz
Dr. Mertz is a board member and CTO of the Open Voting Consortium and serves on IEEE Standards Committee P1622 on data formats for voting systems. After receiving his doctorate in political philosophy, David became a well-known author in the seemingly little related areas of computer science and programming, and in information security. He feels that procedural democracy requires that the technical instruments of governance be open for public inspection, every bit as much as it requires the legal acts of government remain so open.

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Patrick Michaud
Patrick Michaud is the pumpking for the Perl 6 compiler. He holds a Ph.D. in Computer Science and was formerly a Professor of Computer Science at Texas A&M University-Corpus Christi. He is currently a software developer and consultant focused on open source development and applications, including Perl, PmWiki, and Linux.

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Mårten Mickos
Mårten Mickos, CEO of MySQL, brings a strong track record of leadership in global high-tech companies to MySQL AB. Prior to joining MySQL in 2001, Mickos was CEO at MatchON Sports, which he grew to become the twenty-fourth "hottest e-business" in Europe within nine months of its inception. Previously, Mickos was also the CEO at Intellitel Communications, where he was instrumental in transitioning the company from a development lab to a commercial software vendor. He has also directed worldwide sales efforts at several technology companies.

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Tatsuhiko Miyagawa
Tatsuhiko Miyagawa is a Perl hacker from Tokyo, Japan. In 2005 he started working in San Francisco for Six Apart, a blogging company. Usually he codes lots of the server-side stuff for Six Apart products, ranging from mobile optimization and Atom publishing protocol to Ajax integration with UI engineers.

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Dana Moore
Dana Moore is a division scientist at BBN Technologies, and is an acknowledged expert in the fields of software agents, P2P, and collaborative computing. He is author of Peer-to-Peer: Building Secure, Scalable, and Manageable Networks and Jabber Developer's Handbook, and over twenty papers for refereed journals. He has lectured extensively on these subjects at O'Reilly P2P Conferences and other venues.

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brian moseley
Brian Moseley is the lead engineer for Cosmo and Scooby, OSAF's calendar server projects. He has previously worked for such open source friends as Critical Path and Covalent Technologies, where he built web applications in Perl, PHP, and Java. You might have encountered him at past conferences drinking beer with the mod_perl crew. He lives in San Francisco, which continues to be his home base despite sojourns in Oakland, Brooklyn, and Melbourne, Australia.

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A. Elein Mustain
A. Elein Mustain has more than 15 years experience working with databases, ten of those working exclusively with object relational database systems. She is a veteran developer of Ingres, Illustra, and Informix, and is a user of PostgreSQL.

Mustain is the author of PostgreSQL General Bits, a weekly column of informational items loosely based on the pgsql-general mailing list.

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Mark Newsome
Mark Newsome is a web-services architect at Hewlett-Packard in Corvallis, Oregon. He is particularly interested in designing "intelligent" user interfaces that make it easier for users to find information stored in databases. Newsome earned a Ph.D. from Oregon State University in 1996 where he created one of the first web-to-database scripting languages and an accompanying query interface design tool. At HP he is working on a project that allows printers to reorder their own consummables.

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Stephen O'Grady
Speaker biography coming soon.

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Francois Orsini
Francois is a Senior Staff Engineer in the Database Technologies group at Sun Microsystem, Inc. Francois has an extensive 18-year background in databases and infrastructure development with expertise in distributed data management systems, security, resource management, HA Cluster solutions and connectivity services. Francois spent 8 years at Sybase as a senior SQL Server engineer. He then worked at Cloudscape Inc. as a technical lead, where he designed and implemented connectivity and security services for the Cloudscape Java database. François holds a Bachelor's Degree in Civil Engineering and Computer Science from the Paris Institute of Technology. Prior speaking experience includes research and technical presentations at database technical seminars.

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Jonathan Oxer
Jonathan Oxer has been hacking hardware since he was big enough to hold a screwdriver and writing software almost as long.

He is founder of Internet Vision Technologies, one of the oldest and most successful web application development companies in Australia; author of How To Build A Website And Stay Sane (Oft Press, 2004); technical advisor for Linux Desktop Hacks (O'Reilly, 2005); and is working on Ubuntu Hacks for O'Reilly. He is president of Linux Australia, ran the last 3 Debian Miniconferences, and sits on various boards and advisory panels for groups including Swinburne University and the federal e-Research Coordinating Committee.

Oxer writes regularly for The Age and Sydney Morning Herald newspapers, and talks at conferences and events around the world.

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Stormy Peters
Stormy Peters joins OpenLogic from Hewlett-Packard (HP) where she founded and managed the Open Source Program Office. As an early adopter of open source, Stormy was responsible for HP’s open source strategy, policy and business practices. She was also a founding member of HP’s Linux Division. Stormy is a frequent keynote speaker on business aspects of Open Source Software at major conferences such as the Open Source Business Conference and the O'Reilly conferences. She has addressed the United Nations, European Union and various U.S. state governments on open source software.

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Simon Phipps
Technology futurist Simon Phipps is a well-known computer industry insider and commentator and as well as having a widely-read weblog he speaks frequently at industry events on technology trends and futures. At various times he has programmed mainframes, Windows and on the Web. Currently the Chief Open Source Officer at Sun Microsystems, Inc., he was previously involved in OSI standards in the 80s, in the earliest commercial collaborative conferencing software in the early 90s, in introducing Java and XML to IBM and most recently with Sun's launching Sun's blogging site, blogs.sun.com. He lives in the UK, is based at Sun's Menlo Park campus in California and can be contacted via http://www.webmink.net

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Premshree Pillai
Premshree Pillai is a software engineer at Yahoo! and has worked on HK/TW/360 blogs. He hacks (maintains the Ruby APIs for Yahoo! Web Services, Flickr, Technorati, etc.); writes "Ruby Corner," a column for Linux For You; and talks at various conferences about Ruby in his free time. He has contributed to O'Reilly's Python Cookbook, Yahoo! Hacks, and Ajax Hacks, and the ACM's Crossroads. At other times he drinks beer, listens to Opeth, or reads books. His blog is at http://www.livejournal.com/~premshree.

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Charlie Poole
Charlie Poole is an independent software developer, coach, and trainer specializing in agile techniques. Originally a C and then C++ guy, he has been working largely in C# since 2001. Poole is passionate in his advocacy of Test-Driven Development and of the importance of tests as a medium of communication. He is one of the authors of the NUnit testing framework.

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Mahesh Prakriya
Mahesh Prakriya is currently a Lead Program Manager in the CLR team. His background includes 10 years at Microsoft (2 years in SQL Server, 6 years in .NET CLR team in Developer Division in Microsoft and another 2 years before that in VS). Before Microsoft Mahesh was a developer for 3 years in Bell Atlantic (now Verizon) in Solaris/Sybase/X-Motif environment. Mahesh has a Masters in Computer Science from University of Pennsylvania and bachelors in electrical engineering.

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Brian Quinlan
Brian Quinlan is a senior Python developer at Scionics Computer Innovation. His primary responsibilities involve designing and implementing libraries, which are used to build scientific applications. He is also responsible for developer training and new technology assessment. He has made contributions to the Python language in the areas of external process control, Unicode support, and XML-RPC.

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Michael Radwin
Michael J. Radwin is an engineering manager for Yahoo!'s Infrastructure Software group that develops and supports web platform technologies such as Apache, PHP, MySQL, and more recently SOAP/REST toolkits. His team has been instrumental in helping Yahoo! migrate from proprietary to open source software.

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Moazam Raja
Moazam Raja is currently a staff engineer at Sun Microsystems in the Remote Services Delivery organization supporting the Java platform. Raja has also previously worked in the Sun Developer Tools organization, and was a Unix systems administrator for the majority of his career prior to joining Sun Microsystems.

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Michael Rash
Michael Rash holds a master's degree in applied mathematics with a concentration in computer security from the University of Maryland. Michael is the CTO of Solirix, Inc. where he leads the development of the Solsen suite of network security products. He is the lead author of the book Intrusion Prevention and Active Response: Deploying Network and Host IPS, and co-author of Snort-2.1 Intrusion Detection, both published by Syngress Press.

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David Recordon
David Recordon worked as a software engineer at LiveJournal.com for the past three years, starting with a part-time internship as a senior in high school. He currently is working for VeriSign within their Advanced Products & Research group allowing him to continue doing cool stuff with a current focus on digital identity.

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Garrett Rooney
Garrett Rooney works at CollabNet where he plays with Subversion and other related technology. He's a member of the Apache Software Foundation, where he works on APR and pretends he's good enough to commit the occasional change to the Apache HTTPD. When he's not thinking clearly he moonlights as an author; you can see some of his work on O'ReillyNet, in the book Practical Subversion, and most recently in a chapter for O'Reilly's forthcoming Ruby Cookbook. He graduated from RPI, and in his spare time he tries to remember what it was like to have spare time.

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Dave Roseberg
Speaker biography coming soon.

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Peter Saint-Andre
Peter Saint-Andre is executive director of theJabber Software Foundation (JSF), director of standards at Jabber Inc., chair of the Jabber Council, and managing editor of the JSF's standards process. He has been contributing to the Jabber/XMPP community since late 1999, focusing on protocol documentation and development as editor of the XMPP RFCs and author of countless XMPP protocol extensions. He also publishes the Jabber Journal and keeps a weblog, which is syndicated at Planet Jabber.

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Chip Salzenberg
Chip Salzenberg, a well-known figure in the Perl and Free/Open Source communities, is Architect of the Parrot virtual machine. He is also an instructor and published author. Chip has created Free and Open Source software for more than 20 years, and worked on the internals of Perl for more than 15 years. Chip was project manager ("pumpking") for Perl 5.4.

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George Schlossnagle
George Schlossnagle builds high performance email systems at OmniTI, Inc. He's a frequent contributor to PHP and has years of hands-on experience in building large-scale PHP sites and applications.

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Theo Schlossnagle
Theo Schlossnagle is a principal at OmniTI Computer Consulting where he provides expert consulting services related to scalable internet architectures, database replication, and email infrastructure. He is the creator of the Backhand Project, the Ecelerity MTA, and spends most of his time solving the scalability problems that arise in high performance and highly distributed systems.

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Cliff Schmidt
Cliff Schmidt splits his time between consulting on open source business models and contributing to the legal and governance policies of the world's leading open source organizations. He serves appointed and elected positions for Eclipse, the FSF, ObjectWeb, OSI, and the Apache Software Foundation as vice president of legal affairs.

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Hendrik Scholz
Hendrik Scholz is a lead VoIP developer and systems engineer at Freenet Cityline GmbH in Kiel, Germany. His daily jobs consist of developing server side systems and features as well as tracking down bugs in SIP stacks. He earned his bachelor in computer science from the German University of Applied Sciences Kiel in 2003.

While working in Atlanta, GA, and Orlando, FL, he contributed to FreeBSD and specialized in networking security issues. Having access to present and upcoming VoIP devices hacking on these became a spare time passion.

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Jason Scott
Jason Scott runs TEXTFILES.COM, a collection of Bulletin Board System-era artifacts and files going back 30 years in the history of online life. He is the director of "BBS: The Documentary" (www.bbsdocumentary.com), a 3-DVD, 8-episode documentary about the BBS, a project 4 years in the making. He has begun production on GET LAMP (www.getlamp.com), a documentary on text adventures. He lives in Massachusetts.

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John Scott
John Scott (employed at RadiantBlue Technologies) is the project leader of DOD’s Open Technology Development Initiative, which lays the groundwork for streamlined adoption of open source methodologies with DOD, which includes both the adoption (including testing) of private sector open source code and the formation of internal communities of interest around DOD systems, including classified systems. He has held senior positions in technology companies, including three start-ups, including management of software development teams and rapid ramp-up of consulting practices. John holds an MS in Systems Engineering from Virginia Tech and a BA in Mechanical Engineering from Lehigh University. He has been a repeat speaker at the O’Reilly Emerging Technology Conference (and served on the conference committee of its predecessor, Peer-to-Peer), and is a featured speaker at this year’s O’Reilly Open Source Conference.

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Peter Scott
Peter Scott is the author of Perl Medic (Addison-Wesley, 2004) and Perl Debugged (Addison-Wesley, 2001). Scott has worked in software development since 1981 and with Perl since 1992. A graduate of Cambridge University, he runs a business teaching Perl and designing enterprise infrastructures. He has taught at OSCON, YAPC::Canada, and on the Perl Whirl.

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Doc Searls

Doc Searls is Senior Editor of Linux Journal, one of the world's leading technology monthlies, with a paid circulation of over 100,000. His monthly LJ column is Linux For Suits, and his newsletter is SuitWatch.

Doc is also co-author of The Cluetrain Manifesto: The End of Business as Usual, a New York Times, Wall Street Journal, Business Week, Borders Books and Amazon.com bestseller. (It was Amazon's #1 sales & marketing bestseller for over a year.)

Doc Searls Weblog is also one of the most familiar 'blogs' on the Web. J.D. Lasica of Annenberg's Online Journalism Review calls Doc "one of the deep thinkers in the blog movement."

In all three capacities, Doc is also a frequent speaker and panelist at industry conferences.

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Matt Secoske
Matt Secoske is a software developer and consultant in Omaha, Nebraska. During the day he masquerades as an enterprise Java developer, and at night he is developing multiple web applications in Rails. He is a board member of the Omaha Java Users Group, and founder of the Java Coder Workshop, a group of Omaha Java developers that get together to write the code they wish they could write at their day jobs.

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Jamey Sharp
Jamey Sharp was born soon after the X Window System was announced. He has been cleaning up X infrastructure since 2001 and is now an expert on the internals of Xlib, much to his dismay. In his spare time he writes rocket software for the Portland State Aerospace Society.

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Chris Shiflett

Chris Shiflett is a principal of OmniTI, where he leads the web application security practice.

Shiflett is a leader in the PHP community - a popular speaker at industry conferences worldwide, the founder of the PHP Security Consortium, a contributor to the Zend Framework, and an author of the Zend PHP Certification.

A prolific writer, Shiflett is the author of the critically-acclaimed Essential PHP Security (O'Reilly) and HTTP Developer's Handbook (Sams). His writing has also appeared in numerous articles for php|architect and PHP Magazine, as well as a number of other popular books including Programming PHP (O'Reilly) and PHP Cookbook (O'Reilly).

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Kevin Shockey
Kevin Shockey is editor in chief of TUX magazine and web logger for the O'Reilly Network. Shockey is also a speaker, management consultant, and emerging technology entrepreneur. When he's not reading, writing, or dreaming he likes to spend time enjoying his family.

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Mark Skarpness
Mark is a software technologist working in the Open Source Technology Center at Intel, focused on Linux strategy and technology enabling. He has held a variety of technical and marketing positions during his thirteen years with Intel. Mark spent his first five years at Intel as a software engineer and architect working in the area of broadband networking and he has been working on open source and Linux for the past five years.

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David Sklar
David Sklar is a software architect at Ning and the author of Learning PHP 5 (O'Reilly), Essential PHP Tools (Apress), and PHP Cookbook (O'Reilly).

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Joseph Smarr
Joseph Smarr is a senior software engineer at Plaxo, Inc. He has built web applications for many years, including Plaxo’s online address book and newly released web widgets. He is also interested in open data-sharing standards like FOAF. Smarr has a BS and MS from Stanford University in Artificial Intelligence.

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Benjamin Smedberg
Benjamin Smedberg works for the Mozilla Corporation as the coordinator and lead developer of the Mozilla XULRunner project. He is the module owner of Mozilla's embedding and build system modules. In a previous life, Smedberg was a professional choir director and organist.

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Mitchell Smith
Mitchell Smith is the chief software architect at Array BioPharm, Inc., a pharmaceutical company. He has twenty years of experience developing software solutions and has been using Python for five years. He is currently working on decision support and data mining solutions using Python and Java.

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Michael Sparks
Michael Sparks is a senior R&D engineer at the BBC. His work involves researching and creating technologies capable of scaling the delivery of BBC content over the Internet. He's contributed on the Squid, Linux Virtual Server, and Python projects amongst others, and runs the BBC's Kamaelia open source project -- a sister project to the BBC's Dirac project. In his spare time he likes coding collaboration tools and technologies, and playing with code.

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Robert Spier
Robert Spier is an engineer at Google, working on RT and other open source projects. In his spare time, he maintains the perl.org infrastructure and volunteers at a local dog rescue.

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Greg Stein

Greg Stein is an engineer at Google, working on their open source efforts.

Prior to that, Stein was a director of engineering at CollabNet where he managed the Subversion project and releases of their SourceCast product. He also worked at Microsoft as a development manager, in the Commerce Server and Site Server groups. Stein was a co-founder and the corporate technologist of eShop, one of the first electronic commerce software companies, before its acquisition by Microsoft.

In Stein's spare time, he works on many open source projects, such as Subversion, WebDAV, and Python. He also spends time with Apache projects and is the current chairman of the Apache Software Foundation.

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Robert Stephenson
Rob Stephenson is an e-learning architect, consultant, and biology professor. He founded the Harvey Project, an international collaboration to build free learning objects for physiology and OpenCourse.Org, a foundry for open courseware. Stephenson is community manager of the Global Education & Learning Community at java.net, a foundry for open source educational software and courseware.

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Kartik Subbarao
Kartik Subbarao is the global lead for HP's Open Source and Linux Profession, a community of practice for open source technologists throughout HP. He is also a senior IT architect in HP's IT organization, where he is responsible for architecting/engineering Core Infrastructure services.

Subbarao has long been an advocate for open source as a way of accomplishing breakthrough goals and transforming IT. Going back to the early 1990s, he has worked on a variety of open source projects, in roles such as project leader, invited developer, and integrator. Subbarao has a BSEE from Princeton University and an MSEE from Stanford University.

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Steve Suehring
Steve Suehring is a technology consultant specializing in Linux and open source integration and security. Suehring has written several books and magazine articles on a wide range of technologies. During his tenure as an editor at LinuxWorld Magazine, Suehring wrote and edited articles and reviews on Linux security and advocacy including a feature story on the use of Linux in Formula One auto racing.

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Sean Sullivan
Sean Sullivan is a senior software engineer specializing in supply chain management applications. He is an Apache Jakarta developer and has taken the lead role in the OpenAMF project, and was the top contributor to Sun's Javapedia wiki in 2005. Sullivan is the author of Programming with the Java Media Framework and his articles have been published by O'Reilly and IBM.

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David Temkin
David Temkin is the chief technology officer of Laszlo Systems. In this role, he has positioned the company to become the next technology standard for rich internet applications. Under his direction, Laszlo developed its patent-pending open-source product suite and extended operations to both coasts of the United States. Before founding Laszlo, Temkin was senior director of Engineering at Excite@Home where he led a team of 55 engineers, designers, and technical writers responsible for developing the company's consumer software. Prior to Excite@Home, Temkin was an engineering manager in the Newton division at Apple Computer and developed enterprise software at EDS. He graduated from Brown University with a double major in computer science and history, and is named on four software patents.

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Lars Thalmann
Dr. Lars Thalmann works with database replication and clustering technology at MySQL. He is one of the developers of NDB Cluster, the storage engine used in MySQL Cluster. Lars is currently designing and developing the second generation of MySQL replication with features like cluster replication, row-based replication, conflict handling and multi-source.

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Dave Thomas
Dave Thomas has been writing software since the mid '70s, and hopes one day to get it right. In the meantime he and Andy Hunt run The Pragmatic Programmers, a consultancy that helps folks develop better software. Hunt and Thomas have co-authored The Pragmatic Programmer and Programming Ruby, and speak at conferences and give tutorials around the world.

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Laura Thomson
Laura Thomson is Director of Web Development at OmniTI and has been working with PHP and MySQL for many years. She is the co-author of PHP and MySQL Web Development and MySQL Tutorial, and has given tutorials on these topics worldwide.

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Michael Tiemann

Michael Tiemann is a true open source software pioneer. His first major open source contributions included ports of and enhancements to GCC and GDB as well as the original authorship of the GNU C++ compiler, the world's first native-code C++ compiler. In 1989, Michael's technical successes and entreprenurial spirit led him to co-found Cygnus Solutions, the first company to provide commercial support for open source software. During his ten years at Cygnus, Michael contributed in a number of roles from President to hacker, helping to lead the company from a fledgling start-up to an admired open source leader.

Michael is now Red Hat's Vice President of Open Source Affairs. In this role, Michael integrates and informs technology and open source strategies for Red Hat and its strategic partners and customers in the public and private sectors. In addition to his responsibilities at Red Hat, Michael serves on a number of boards, including the Open Source Initiative (where he is also President), the eclipse.org project, and the GNOME Foundation. Michael also provides support to organizations that further the goals of software freedom, including the Free Software Foundation and the Electronic Frontier Foundation.

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Adam Trachtenberg
Adam Trachtenberg is the senior manager of Platform Evangelism at eBay, where he preaches the gospel of the eBay platform to developers and businessmen around the globe. Before eBay, Trachtenberg co-founded and served as vice president for development at two companies, Student.Com and TVGrid.Com. At both firms, he led the front- and middle-end web site design and development. Trachtenberg began using PHP in 1997, and is the author of Upgrading to PHP 5 and coauthor of PHP Cookbook, both published by O'Reilly Media. He lives in San Francisco, California, and has a B.A. and M.B.A. from Columbia University.

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Robert Treat
Robert Treat is a longtime open source user, developer, and advocate. He helps to maintain the postgresql.org web site, works on phpPgAdmin, and contributes back to the PostgreSQL core whenever he can. He has contributed several articles to the PostgreSQL “techdocs” site, is a two-time presenter at O’Reilly’s Open Source Convention, co-authored the book Beginning PHP and PostgreSQL 8, and has been recognized as a “Major Developer” for his work within the PostgreSQL community.

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Ben Trott
Ben Trott is co-founder and CTO of Six Apart, the creators of the TypePad service and Movable Type software, two of the leading tools for publishing weblogs. Named one of Fast Company's Fast 50 for 2004, Ben contributes regularly to CPAN (the Comprehensive Perl Archive Network), and has written for Perl.com. He has also contributed to "Essential Blogging," and writes regular posts to the Six Apart company weblog at sixapart.com. He lives in San Francisco with his wife and co-founder of Six Apart, Mena G. Trott.

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Adam Turoff
Adam Turoff is a longtime Perl programmer who has strived to learn a new programming language every year for the last six years. Recently, he has focused on Haskell and functional programming. He currently lives in the Washington, DC area with his wife.

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Andrew van der Stock
Andrew van der Stock is a leading Australian web application researcher and is active in the web application community. He is the current lead of the OWASP Guide project, moderator of webappsec, and helps organize the Melbourne OWASP chapter.

van der Stock has presented at many conferences including BlackHat USA, Ruxcon, linux.conf.au, and AusCERT. He is also ex-President of SAGE-AU, the System Administrator’s Guild of Australia.

You can read more about OWASP, the Open Web Application Security Project at http://www.owasp.org/ and you can read more about van der Stock at http://www.greebo.net/.

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Guido van Rossum
Guido van Rossum is the creator of Python, one of the major programming languages on and off the web. The Python community refers to him as the BDFL (Benevolent Dictator For Life), a title straight from a Monty Python skit.

He moved from the Netherlands to the USA in 1995, where he met his wife. Until July 2003 they lived in the northern Virginia suburbs of Washington, DC with their son Orlijn, who was born in 2001. They then moved to Silicon Valley where Guido now works for Google (spending 50% of his time on Python!).

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Jesse Vincent
Jesse Vincent is the author of RT and the founder of Best Practical Solutions, LLC, a company dedicated to open source tools to help people and organizations keep track of what needs doing, when it gets done, and who does it. Before founding Best Practical, Vincent worked as the systems lead for a now-defunct dotcom and as a software designer at Microsoft.

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Larry Wall
Speaker biography coming soon.

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Tony Wasserman
Anthony I. (Tony) Wasserman is a Professor of Software Engineering Practice and Executive Director of the Center for Open Source Investigation at Carnegie Mellon West.

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Jeff Waugh
By day, Jeff Waugh works on Ubuntu business and community development for Canonical. By night, he rides shotgun on the GNOME release juggernaut and plots the Open Source blogging explosion with Planet. Waugh is an active member of the FOSS community, holding positions such as Director of the GNOME Foundation Board (2003-2005), president of the Sydney Linux User's Group (2002-2004), and member of the linux.conf.au 2001 organising team. He is a card-carrying member of Linux Australia, but does not say "mate".

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Luke Welling
Luke Welling lives in Melbourne, Australia, and works for Hitwise.com. He has been using PHP for nearly ten years. PHP and MySQL Web Development, co-authored with Laura Thomson (Sams 2004), is the bestselling open source programming book of all time. He is a regular speaker at open source conferences around the world.

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Christian Wenz
Christian Wenz works as a writer, trainer, and consultant with focus on web technologies. He is author or co-author of approximately three dozen books and speaks at conferences around the globe. On rainy days, he does small contributions to several open source projects; among other things, he is co-maintainer of the PEAR::UDDI package.

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David Wheeler
David Wheeler is the maintainer and lead developer of Bricolage, an enterprise-class open source content management system. He is also founder and president of Portland-based Kineticode, the leading provider of services and support for Bricolage. In recent years, Wheeler has written extensively on content management with Bricolage for the O'Reilly Network and spoken on the subjects of Bricolage and enterprise-class open source software at a wide variety of conferences and venues world-wide. Lately he has been hard at work on Bricolage 2.0, the next generation of Bricolage.

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William Wright
William Wright is a Division Engineer with BBN and is co-author of the books "Beginning Java Networking" and "Jabber Developer's Handbook." He has given several talks at professional and academic conferences on topics including multiagent systems, software engineering, and embedded systems programming. His articles have appeared in several journals including Dr. Dobb's Journal and Java Developer's Journal.

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Scott Yara
Prior to Greenplum, Scott served as vice president of Corporate Strategy for Digital Island, a publicly traded hosting and internet services company that was acquired by Cable & Wireless in 2001. Prior to Digital Island, Scott served as vice president of Marketing for Sandpiper Networks, an Internet content delivery services company that merged with Digital Island in 1999. At Sandpiper, Scott helped to create the industry's first content delivery network, a globally distributed computing infrastructure comprised of several thousand servers deployed in more than 50 countries worldwide, and used by many of the industry's largest Internet services including Microsoft and Disney.

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Nathan Yergler
Nathan Yergler is a software engineer for the Creative Commons. Yergler joined CC in July 2004 after pioneering the use of Python in the high school programming curriculum at Canterbury School. He lives in Fort Wayne, Indiana, and will receive a B.S. in computer science from IPFW in May, 2006.

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Geoffrey Young
Geoffrey Young is a member of the Apache Software Foundation and a frequent contributor to the mod_perl community. He currently works for Ticketmaster. When not programming or writing, he is busy spending time with his growing family, slowly rebuilding their house a room at a time.

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Andrei Zmievski
Andrei Zmievski works on internal tools at Yahoo! Inc. specializing in i18n and infrastructure software, such as PHP and Apache. He is also a core PHP developer, leader of the PHP-GTK project, and a co-author of "PHP Developer's Cookbook" and Smarty templating system. His current focus is the native Unicode support in PHP. In his free time he studies languages and linguistics, goes sailing, and travels to other countries.

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Jeff Zucker
Jeff is the author/maintainer of a dozen database-related Perl CPAN modules, has contributed to the DBI distribution, and is co-author with Tim Bunce of the upcoming second edition of O'Reilly's Programming the Perl DBI. Since 1995, he's served as Chief Information Officer of Virtual Production Services LLC, a firm specializing in database and software design for UN and NGO agencies involved in international development work. Previously he designed database applications at Columbia University's Center for Academic Information Technology including the world's first online version of the Physician's Desk Reference.

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