The PC version of Grand Theft Auto IV has been delayed a few weeks until December 2nd. The game is identical to the 360 and PS3 version in it's co-op offerings, with 3 different co-op gameplay scenarios available for up to 4 players.
RockStar Games has also release the system requirements for the game, which I guess for PC gamers, makes sense. They have some sort of Rosetta stone to read this stuff.
Minimum System Requirements
OS: Windows Vista (Service Pack 1) / XP (Service Pack 3) Processor: Intel Core 2 Duo 1.8 Ghz / AMD Athlon X2 64 2.4 Ghz Memory: 1.5 GB RAM; 16 GB hard drive space Video card: 256 MB NVIDIA 7900 / 256MB ATI X1900Recommended System Requirements