I think JCL pretty much decided this when he said he'd model everything, himself.
The main problem that people have with PhysX seems to be the huge driver. Just for information - I have decided to model everything with pencil and paper, by hand, in realtime. Also, with every purchase of the Pro version of A8, you will receive a pony.
This obviates the need for ANY physics engine any any drivers and/or legal requirements found in the use thereof. I therefore change my vote from "PhysX" -- which I think would otherwise be a fantastic choice in that its continued development by an established company would lead to a stable and predictable simulation -- to "Other."
