here are some features (in case you dont know)of the upcoming rockstar game gta 4

1.no longer to you travel to ammu nation to buy weapons but u ring a weapons dealer

2.mobile phones now play a bigger part than in previous games

3.to get the heat off your back when the cops are after you instead of collecting police tokens rockstar have included a new feature (used in the recent scarface game) where u escape the area and if this is not done quickly the cops are given orders to kill you

4.a lot of features used in san andreas like the haircuts and wide range of clothing and the ability to be fat,skinny or muscly have been taken out

5.unlike previous gtas none of the characthers from past games will appear (as most are dead anyway)