If ATi would simply pay for the rights to use PhysX (along with the costs of driver development to allow both architectures to work properly together), none of this would even be an issue. It's odd that so many nVidia haters here complain about how crappy their cards and company are.... yet they still want to cherry pick technologies from them for their own use, going as far as hacking their drivers. Then they complain again once they find out nVidia is trying to stop such theft of their technology.

The lack of the ability to use PhysX cards in conjunction with ATi main graphics cards is 100% the fault of ATi who refusing to pay to use the tech. Why don't any of the complainers put blame where it is belongs? If this situation was reversed, and ATi had a similar technology that I wanted to use with my nV card.... i'd be calling out nV to either create their own solution or pay usage rights to ATi. It's quite obvious though that ATi has nothing nV users currently want... so that theoretical is a moot point.