Anyone have a clue as to why there is no canvas support in IE9PP? The IE team has been big on pushing the fact that the want to support the standards - is there some controversy around the canvas element like there is around WebSQL?
The real push should be to get everyone else to support it, and Microsoft can choose to support it or be left in the dust. There would be far more progress if all the others didn't have to continuously fight w3c kowtowing to Microsoft. W3c is as bad in this regard as ECMA. There is a real reason the html5 push started outside w3c, because w3c killed this sort of thing for years and then, when it started getting real steam on the outside, w3c promptly does everything it can to bring it inside and place Microsoft officially in charge so they can sabatoge it.
If Microsoft supported it, they would implement it, no questions, as with any number of other standards. They only game this sort of standards process.