I watched it (just finished now) and here is a summary:
- *PORTAL: STILL ALIVE dated 2008 for XBL
*FALLOUT 3 getting exclusive DLC for 360 and PC (demoed)
*RESIDENT EVIL 5 coming March 2009 (demoed); showed off online co-op
*FABLE 2 coming October 2008 (demoed); showed new online feature where friends can jump into your game with a touch of a button
*GEARS OF WAR 2 coming November 2008 (demoed)
*Avatars and new dashboard interface (surprise!)
*XBOX LIVE PRIMETIME (similar to a game show channel sort of thing)
*GALAGA LEGIONS announced
*LIPS was announced; a singing game
*YOU'RE IN THE MOVIES announced; creates a movie using Live Vision Camera
*Netflix partnering with Microsoft to provide video content
*ROCK BAND 2 tracklist announced: Photo here
*Square-enix (Yoichi Wada) talks about their three games heading to 360: INFINITE UNDISCOVERY, STAR OCEAN: THE LAST HOPE, THE LAST REMNANT
That's all.
...
You'd think! Just before it finished, the Wada jumps back in and goes: "Hey. Look at this video."
And yes... IT FINALLY HAPPENED.
FINAL FANTASY XIII HAS GONE MULTI-PLATFORM
Just to clarify: FFXIII is coming to the 360.
I think that about summarises it. Feel free to add more to this if I've missed something. (I missed the first 5/10 minutes of the conference btw)
[EDIT]Pic of FFXIII announcement:





