As awesome as websockets are, websockets are an incredibly volatile standard in very early stages. The only shipping browser to support is (Chrome) does not even conform to the current draft.
Given microsoft's history of browser releases, I'd prefer an out-of-date implementation that js libraries can wrap to a wait-and-see approach. It would be better than nothing -- websockets solve an important and annoying problem.
So you want another IE6? That's why we were stuck with an incorrect box model implementation. When they implementation that standard before it was finalized, we got years of broken layouts.
