bit-tech.net | Unreal Tournament 3 - PhysX Content
Bit Tech's review of the Physx element of UT3. Basically, it's poop.
I'd love to see physics properly implemented in games - imagine you're playing Call of Duty, and you're sheltering in a house. A tank fires on you, and the house collapses completely like a stack of cards. Or you're behind a wooden bench, and bullets keep carving niches out of it.
Granted, Crysis' tin shacks were built up of simple parts, but that's thing kind of mess I like to be able to make, and it didn't require an £80 piece of hardware just to handle the physics either.
Now that kind of thing would be worth buying a Physx card for.