ATI R600 Details Leaked
 

The R600 will also be the first practical implementation of ATI’s GPU concept. This is something we would be very interested in seeing because if this works as well as ATI claims, then apart from cutting down CPU load, it might put certain PhysX processor manufacturers out of business, simply because ATI cards would not need an additional card to do necessary computations for Physics. The onboard GPU will take care of it.