All playable at Microsoft booth:
Halo 2
Forza Motorsport
Blinx 2 : Battle of Time & Space
Phantom Dust
Mech Assult 2: Lone Wolf
Jade Empire
Conker : Live and Reloaded
Sudeki
Kameo : Elements of Power
Full Spectrum Warrior
Fable
XBOX Video Chat
http://www.itmedia.co.jp/games/gsnews/0408/30/news07.html
Edit: fixed.
Halo 2
Forza Motorsport
Blinx 2 : Battle of Time & Space
Phantom Dust
Mech Assult 2: Lone Wolf
Jade Empire
Conker : Live and Reloaded
Sudeki
Kameo : Elements of Power
Full Spectrum Warrior
Fable
XBOX Video Chat
http://www.itmedia.co.jp/games/gsnews/0408/30/news07.html
Edit: fixed.