There are HTML5 ads today, and they're already extremely annoying, possibly even more annoying than Flash at the moment, because they're so badly designed, often completely broken. But eventually, there will be some kind of backlash, and browser makers will block the more annoying behavior or lose ground to competitors that will. I never said the transition was going to be easy, and there's pain all around right now, but at least it's exciting, and it feels like we're finally making some progress towards a better destination. This pot needed to get stirred a bit, and that's what the HTML5 platform excels at. With the Flash platform, there is no competition, and it has drifted away from the user's control.

sorry but how do you expect browser makers to block more annoying behavior? Thats nonsense.

Regarding competition.

So your idea of competition is how apple does it by not allowing Flash on the iPad and iPhone.

That's not competition.