I got a small sound byte for you all..
its not much.. but its info..
take a listen here..
also some more info not in the audio file..
Multi player TBA!!
GI demoed on Xbox360
USE OF CELL PHONES TO CALL CONTACTS.
No planes, kinda knew it all along. After all, a city based on NYC and people crashing planes into buildings. Sure you could do it in VC and SA, but I guess it's a sin to do so in NY.