Looks like the 2010 VGAs are over and they showed off a fair few games: 
 
Uncharted 3 
Forza 4 
Batman: Arkham City 
Elder Scrolls V:  Skyrim
Prototype 2 
SSX: Deadly Descents
Resistance 3 
Portal 2 
Mortal Kombat 
Insane 
Thor