Here are sony's GDC 07 details.
Monday, March 5:
Phil Harrison to Open Conference With Keynote Speech, 'Game 3.0 Developing and Creating for the 3rd Age of Videogames' will kick off the conference on
March 7th, from 10:30 a.m. to 11:30 a.m. PST. The speech will focus on the
key components of Game 3.0 -- community, user-generated content,
collaboration and commerce -- all highlighted through live demonstrations
of previously un-announced services and games for PLAYSTATION(R)3
Hit jump for full details.