"...The whole point of the Labs is to have a place to experiment with unstable specifications so that the specifications can improve. It’s impossible to judge beforehand when the specification will stabilize and be ready for inclusion in IE9.”
That's the kind of vendor/politico-phrasing in which the speaker praises something but tries to smear it at the same time. Like praising an opponent's knowledge of the law while suggesting it came from studying law books in prison.
Never mind that until earlier this year it didn't want to see the word HTML5 in print without black funeral bunting draped around it.
Microsoft is now on board and would like you to know that.
It would also like you to know that, since it is on board, it will take over as much of the steering and navigation as it can, while feeding developers and users a steady stream of tiny snacks to distract you from noticing if the course has changed.
Microsoft has plenty of tools. Help yourself. Take two, they're small.