LEON! I am shocked and appalled at your comments!
Anyways, the thing about putting it on 360 is that the game was not even intended for 360. Rockstar made the game specifically for Wii, PS2, and PSP. They could do a port of it to 360, but it would have shoddy graphics (as it was made for systems with way less power) and might get knocked by 360 owners for that.