Nvidia: Hybrid PhysX Is Technically Impossible

[Final8ty]

Nope!

yes

And nope again.

If people would buy Nvidia cards and use them with ATI hardware they would be compelled to offer support to them and make sure that it does work. Now what if "holy ATI" would break this compatibility themselves through drivers to hurt Nvidia's sales? What then? Would Nvidia be able "To deliver a good experience for users" ?

And nope.
Because all they have to have on the description of features is: Physx is only officially supported when used in conjunction with a NV video card. & that must be on the box.