ASUS PhysX P1 GRAW Edition 128MB
 

While early titles are probably not the best examples of what the PhysX technology is capable of, they act as barometers for what developers think of physics in games. So far, GRAW seems to treat it as extra eye candy tacked on rather as an afterthought. Cell Factor predictably tries its best to blend the physics into the game play. It may not look that great, and could use some optimization (going by its low frame rates even with a respectable system), but it does seem promising. As for Rise of Legends, it is not really essential for the game too. If only more developers would think outside the box rather than just adding more explosions. And that is the crux of the issue for Ageia.