nVidia PhysX - I don´t have nVidia card and I don´t inted to ever buy it.. but I would appreciate "normal" physic in game.. why don´t they just used Havoc? Physic and object blocking and such things are really wierd in this game.. not mentioning pretty strange jumping..
There is no difference between physics effects in the game on ATI and/or NVIDIA cards.
"Real" physics acceleration not even used (like in Batman AA).