Boy am I starting to get tired of companies talking about how much they love HTML5 without walking the walk. Google employes Ian Hickson, the “dictator” at HTML5’s helm,† but fails to support <video> with a Flash fallback. It’s really not hard!
Adobe is guilty of this hypocrisy; Google is quite guilty… only Apple is mostly walking the walk (you never need Flash for any of their web properties), and increasingly Microsoft (no Flash or Silverlight is needed for http://zoom.it).
Edit: YouTube supporting HTML5 ≠ this Google web page supporting HTML5.
And FWIW, even the YouTube HTML5 beta is insufficient — Many times nothing at all will play, even though third-party sites like DetURL or File2HD can find .MP4 files for that video, and the video plays fine on iOS(!). And I’m using Chrome with the plugin completely disabled, for Chrissake — Given there is no technical reason they can’t tell I don’t have Flash, it becomes obvious no one at Google cares about walking the walk.
†Dear downvoters: I am not making up, Hixie refers to himself this way. http://adactio.com/journal/1600/