... Continued games on nVidias part to block it will most certainly end up becoming issues with actual SLI users, so hopefully they end up understanding that such a low-percentage of users would go this route that it is not worth affecting actual SLI-certified users. Heck, if nVidia truely doesn't have any chipset plans for the future, why would they care?
The physX "problem" with ATI hardware in the system is already solved and isn't problem anymore .
And finaly: "Heck, if nVidia truely doesn't have any chipset plans for the future, why would they care?" - the answer is very simple and clear... because they (nVidia) love their own customers and want to fu*k them infinitely , instead of earning 5$ for SLI certificate on every single P45, X38, X48 board.