I imagine PhysX and ATi's equivalent could be worthwhile computational aides one day. But don't get the idea that I ever bought into SLi or Crossfire. I'm a fan of neither. Give me one solid-performing GPU and I'm happy.
It's one thing to try to keep up with some interesting concepts (like Hydra). But the reality is really all about what software codes gaming programmers are willing to use. So far only one or two games support PhysX. The best thing about it is that PhysX is now a software implementation for Nvidia, through it's drivers.
Imagine the day when Oleg releases recommended requirements. Better get your orders in for a Cray right about now.

Flyby out