I am CEO/Founder of Hashrocket, a boutique web consultancy and product shop headquartered in Jacksonville Beach, Florida. I have a well-read blog and speak at conferences and technical user groups on a regular basis. I’m also a series editor and book author for Addison-Wesley.

Fabián trabaja con internet desde Chile, asesorando empresas en paises como Francia, Holanda, Argentina, España y Chile. Estudiante de ultimo año de Ingenieria en Ejecución en Informatica en DuocUC Viña del Mar. Actualmente trabaja utilizando herramientas de desarrollo rápido tales como Ruby on Rails y CakePHP. Tiene ademas expertise aplicada en proyectos de administración de servidores y seguridad de redes.

Fabio is one of the most prolific Rails and Ruby evangelists in Latin America. He organized and promoted the first true Ruby on Rails event at Brazil: RejectConf São Paulo '07, and most recently organized Rails Summit Latin America in 2008. He regularly blogs in Portuguese and English on software development, Ruby and Rails at akitaonrails.com. He is currently employed as Web Hosting Product Manager at Locaweb – the largest web hosting company in Brazil – with one mission: make Ruby and Rails ubiquitous in the Latin America open source communities.

Evan 'Rabble' Henshaw-Plath is the co-author of the upcoming Testing and Debugging Ruby on Rails from O'Reilly. He is currently working at Yahoo! Brickhouse and was architect and developer for the podcasting startup odeo.com. He has been doing rails development since the first release of rails in July 2004. He blogs about technology and politics at anarchogeek.com. With Fire Eagle he’s worked to launch the first public ruby on rails site at Yahoo!

Carla Ares es Ingeniera en Informática, graduada en el año 2007 en la Universidad de Palermo. Desde el año 2006, hasta la actualidad, realiza desarrollos web con Ruby On Rails. Actualmente trabaja en www.honou.com.ar desempeñando tareas de consultoría y como docente en la Universidad de Palermo. Amplio expertise en desarrollos de aplicaciones en C abocados a las telecomunicaciones.

Claudio Zamoszczyk es Licenciado en Informática, graduado en el año 2003 en la Universidad de Palermo. Cuenta con una vasta experiencia en Java y C# entre otras tecnologías. Actualmente trabaja en www.honou.com.ar desempeñando tareas de consultoría / mentoring y como docente en la Universidad de Palermo.

Evan is the lead developer of the Rubinius Ruby VM. He works on Rubinius full time, funded by Engine Yard.

David Heinemeier Hansson is the creator of Ruby on Rails. A programmer and evangelist of "less software," he’s also the creator of applications like Instiki, Basecamp, and Ta-da. David works with the open source community and designers extraordinaire at 37signals.

Actual responsable del proyecto "One-Click Ruby Installer", el cual facilita el acceso de Ruby a los usuarios de Windows. Colaborador en varios proyectos open source y su mejor integración inter-platforma. Desempeña la función de Director de Tecnologia para AREA 17, agencia de diseño y desarrollo con oficinas en Paris y NYC.

Ben Scofield is a development director at Viget Labs, where he builds Rails applications for Web 2.0 startups. He's been using Ruby and Rails for over four years, and is the author of Practical REST on Rails 2 Projects, from Apress. He's spoken at Railsconf, Rubyconf, Railsconf Europe, and more over the past few years. When he's not hacking, he spends time with his wife and daughter, reads voraciously, and tries to make the world a better place for web developers everywhere.

Nicolás is a long time ruby and rails developer, author of Integrity, the easy and fun automated Continuous Integration server, and core contributor of the Sinatra web framework. When not working on some awesome stuff for ENTP, he can be found hacking on OSS or playing board games and other random geekery.

Desi is a Principal Consultant at Hashrocket, where she is responsible for a full range of consulting activities, from providing Agile coaching, process and management advice, requirements analysis and last but not least, software development in Ruby on Rails. During her tenure at world-renown consultancy ThoughtWorks, Desi worked on many large-scale custom web applications, both for startups and Fortune 100 companies. Desi is also the founder and president of DevChix, a non-profit advocacy and support group for female developers with members from around the world.

Emilio is an Argentine entrepreneur, developer, open source contributor and Rails evangelist. He's the cofounder of Eventioz, an online ticketing site implemented in Rails. He is also one of the authors of the Rails Guides project. He has been using Rails since 2006 and contributing to Rails core. since early 2008.

Chad started his career in Visual Basic at Microsoft Corporation,became VP of Engineering at Visto Corporation and now owns a consulting company based in Buenos Aires. His passion for languages has lead him to spend as much time developing in Ruby, Rails, and Erlang, with a focus on distributed and cloud computing.

On December 23, the Rails and Merb teams announced that they will be joining forces to bring the Ruby community Rails3. The third edition of Rails will see an overhaul of the framework to merge the philosophies and features of the Merb framework into Rails. Among other things, that includes providing support for ORMs like DataMapper, Sequel (and even Hibernate!) and for JavaScript libraries like jQuery and Dojo. It will define an explicit public API for users and plugins, backed up by a test suite. It will have loads of performance enhancements, with the hope that Rails3 can be as performant as Merb is currently. Finally, Rails3 will have significantly cleaner internals, with three full-time employees hard at work to make it so. In this talk, Yehuda will go deeper, explaining some of the details of the work. He will explain how Rails is becoming ORM agnostic, with code samples of work done so far. He will show some of the more significant performance enhancements, and explain why they increased the performance of the framework. Finally, if time permits, he will go into some of the more interesting refactoring experiences of the transition. About the Speaker: Yehuda works full time as a Core Team Member on the Rails and Merb projects, and is currently employed by Engine Yard. He is the co-author of "jQuery in Action" and the upcoming "Merb in Action," and is a contributor to "Ruby in Practice." He spends most of his time hacking on Rails and Merb, but also on other Ruby community projects, like Rubinius and Datamapper. When the solution doesn’t yet exist, he’ll try his hand at creating one – as such, he’s also created projects like Thor and DO.rb.