I didn't go - my promotion was on hold
because of the conference. Instead, I ran our store, which dominated our district and I got it up to 7th overall in the entire region. That includes downtown Oakland and San Francisco. So yeah, I was busy.
I'll tell you second-hand knowledge:
1. They got to play Halo 3 and apparently it was incredible.
2. As was Mass Effect.
3. Uncharted is awesome too.
4. Prototype will change some minds.
5. Rock Band is superior to Guitar Hero III in every way (even though Activision actually got Slash to play for the event - folks still preferred Rock Band)
6. Rock Band will have third party accessories like stage lights and smoke machines.
7. Turok, believe it or not, is the real deal.
8. GameStop managers don't care about PC games

9. There are craptons of music genre games coming to the DS
10. There were a lot of good games - yadda, yadda, yadda