In my opinion :
oodale believes that HTML5 still needs a "marquee experience"; a game that can highlight the potential of the platform in the same way that, say, Wii Sports did for the Nintendo Wii.
"Once we have that, I think you'll see the pace of innovation quicken. I think you'll see developer adoption quicken."
Those words describe the situation.
The 2 years time limit sounds like a bit much imo.
As soon as the "marquee app" mentioned hit recognition, give it 6 months for the device makers to align themselve.
It's a downer for me that, at the moment, mobile devices can't handle html5 gaming as they should.
I believe we will see this app/game during this year though. I'd really like it to come from the C2 community too, that would be a hell of a "2 birds 1 stone".