I was referring to the thread you mentioned, not to you specifically. The driver implementation if a linux kernel object, which does nothing else than operate on the hardware level. I'm sure nVidia could somehow come up with a hack for X to accelerate certain parts, and that would possibly satisfy the starter of that thread, but it is far from an ideal solution - in my opinion, and I hope it'll never come to that. Perhaps, in the future, if the entire X server depends on the GPU, it will be an attractive solution.
Originally Posted by mpcd