This thread is for discussion of all XBox 360 content at this year's E3.

Microsoft will kick off their E3 2008 presence at 1:30 PM EST today with their annual press conference. Want to watch it live? G4TV will be broadcasting it on-air with no commercial interruptions. You can also catch a live stream here:

G4 - E3 2008

Reference
Microsoft Official E3 Page
Squad-based Halo rumor
GameSpot Live Coverage
IGN Live Coverage
Joystiq E3 Coverage
Joystiq/Engadget Microsoft Conference Liveblog

With rumors circling about a 360 motion controller, a new Halo game, and the recently-announced 60GB unit and corresponding system price drop, it's anyone's guess what Microsoft actually has in store for us this year.

The Big Stuff
Final Fantasy XIII will be released on the Xbox 360 outside of Japan.
--Resident Evil 5 (March 13, 2009) will feature 2-player co-op.
--Fable 2 (October 2008) will feature co-op.
--Fall Update will bring new dashboard, avatars, Netflix movie streaming, ability to store games on HDD, 16:10 support, and more.
--Portal: Still Alive coming to XBLA later this year.
--Geometry Wars 2 coming in August, features 4-player co-op.
--Gears of War 2 (November 7, 2008) features a 5-player co-op mode called "Horde" where players take on waves of Locusts.