Really nice and solid Quake3 rendering.

Even fullscreen and captured mouse.

I think if there are some killer apps out using WebGL in
a larger scale, the browsers will have to adjust to a full support.

That IE does not support WebGL is not a big problem. The target
group (gamers) will have no problem switching to Chrome or FF.

Business Sites will follow to implement WebGL multimedia if the market share of IE is
low enough in their target group.