@ocre
Way to miss the point completely.
GW would be better for gamers & developers if it was open source, modifiable, optimizable by others besides NV. We as gamers can enjoy all those effects, but at a less performance hit.
Just a simple example for you, as a gamedev, I would optimize HairWorks and find x16 tessellation offer the best IQ vs performance. More than that, has too low an impact on IQ or none at all, but costs a lot of performance. Or, I would be able to modify the code and offer various levels for users to select, not just one default x64.
We've seen only a few GW features in games so far, mostly HBAO, DoF and HairWorks. The other feature demos look fantastic, but if I had a guess why they aren't used more, its probably because they are unoptimized and tank performance hard. HairWorks cut performance in half, add some more GW features and we can all enjoy a slideshow, on top of the line GPUs.