dattimr :
Nice one. It says what pretty much every non-blind enthusiast has been observing, though. CUDA and PhysX show no sign of surviving outside of their current niches, Ion is much more about a concept than about real usefulness and their high-end can't keep their pockets filled enough. I would say that they need to get their next arch very right (not only in performance, but in general), because otherwise we'll start to see the downfall of Nvidia. I bet someone will buy them in the long run.
I agree but I believe that PhysX is in asset that nVidia can definitely take advantage of. I am wanting some one to start releasing PPU cards again for PhysX, it is finding its way into more games and recent findings show drastic differences in game performance while running a dedicated PPU with PhysX enabled.
As for the discrete card market, they don't have to worry that much. ATI releasing a card that is a better bargain or just out right faster is nothing new, they have been trading blows pretty regularly since the 9 series.
Northbridges and onboard graphics is an area where their probably taking the biggest hit. Since AMD acquired ATI nVidia lost considerable market share.
Nforce chips and AMD cpus were always matched up in enthusiast systems. Then you have intel squabbling over petty bs about its northbridges and doesn't want to let nvidia produce chipsets for the i7. ATI has also stepped its onboard GFX chips too.
SLi and Crossfire in general are huge letdowns I think. Its mostly a marketing technique to sell more cards, as their actual performance is always hindered by sh1tty drivers or bad software support or both.
I agree for the most part (especially when it was introduced during the GeForce6 era) but their coming around, more games support the use of multi-gpu than before. Hopefully that additions to D3D will help as well, supposedly this is an area that will be addressed when D3D11 is released.
Anyway, nVidia has some tough times but their not going anywhere, they seem pretty resilient.