That's the whole point of IE9; to get IE to where Firefox and Safari are.
Wasn't that what we were promised with IE8 already ? Deliver on the promises in IE8 by fixing the reported problems before making yet more promises (only to find them broken once again as long as they don't start to fix their bugs and mistaken choices).
Promises: I ain't buying it anymore. Deliver first on what was already promised, then I'll believe (maybe).