Adrian Holovaty, one of the creators of the Django framework for Python, and David Heinemeier Hansson, the creator of Ruby on Rails framework, answered questions about their work and the future of Web-application development. You can read more about the event at the Snakes and Rubies website.
That event was recorded, and now audio and video are available for download.
See more: http://www.djangoproject.com/snakesandrubies/
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.