i thought killzone2 was already using it? Well, seems like killzone3 or all new games that use the PhysX engine should look better than otherwise. This is really very hard to imagine for killzone2. So... Guerilla really did all this without PhysX?! WOW!
And what if they optimize (which they surely will!) with PhysX?!
PhysX was available from day one people!!!! BUT NOT FREE! Just read all the comments and the initial post really, really slowly! I know I did the second time!
Sorry, but i don`t see the opportunity of physx. Unfortunately, most of the games are multiplatform titles so most of the developers won`t give a damn... of a feature that only one of the system has.