Sony announced they had signed a deal with Epic Games to bring Unreal Tournament exclusively to the PS3 for 'this year'.
According to Sony, gamers will be able to port PC Unreal mods to the Playstation 3, and play them via a new multiplayer interface.
It is possible that the deal is a timed exclusive deal, as the "this year" comment would indicate that next year it could still come to the Xbox 360.
The game will support both Keyboard and mouse controls on the PS3, as well as the motion sensing capabilities of the SIXAXIS controller.
The game is set for release for the Playstation 3 and the PC, this Novemeber.