I guess one would have to step backwards from 2.6.32, 2.6.31, 2.6.30, 2.6.29 etc
However, it may become very complex very soon for some graphics heavy apps because of dependencies between nvidia/fglrx, mesa, X etc
But for the purely deterministic and calculatory apps it should be fine.
And, it would be a scoop to speak of!
True, the gfx tests could be harder to pull of sometimes but are not a must-have for all the kernels, I'd rather see how other parts of the system evolved that are used more generally than the gfx stack.