They have all the weight they need to pull this through. I'm dreaming of a day in which they will switch all Youtube videos to WebM, with all the Apple devices becoming useless to watch Internet video :) And Steve Jobs struggling to explain why, after wearing the mantle of open standards in the whole Flash vs HTML5 thing, he's now pushing H.264 against WebM...
Anyway, in my view the less encumbered formats around the best for everyone's freedom.