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                     David Heinemeier  Hansson, 37signals
                    
                      
                        
                      
                      David Heinemeier Hansson is a programmer and evangelist of Less
Software. He's the creator of applications like Instiki, Basecamp, and
Ta-da, and works with the open source community and design
extraordinaires 37signals. Since the release in late July 2004, he's
also been the leading the development of Ruby on Rails, a web
application framework and environment for building real-world
applications with joy and less code than most frameworks spend doing XML
sit-ups.