Yeah, Apple is trying to sidestep Khronos and go through W3C. I think the Khronos solution should succeed over the W3C one in this case. W3C doesn't seem to have a grasp of the power plays and politicking involved in the 3D graphics driver ecosystem.
We have all major browser vendors on board with discussing these things in the W3C's GPU for the Web Community Group, and we expect to end up with a final result based on multiple prototypes as inputs.
We expect Mozilla to be submitting their proposal to gpuweb soon too.
Khronos only has two of four browser vendors on board. It remains to be seen what will happen, but I doubt it will lead to a cross-browser standard. Browsers are more relevant for web standards than 3d graphics drivers.
