As someone who infinitely prefers HTML5 to Flash, I still think it will take many more years for HTML5 functionality (from the developer perspective) to approach that of Flash.
BUT what amazes me here is that so few people are rightly criticizing Apple. Hardware accelerated H264 decoding has been
available in graphics chipsets for years, and exposed and available to our Windows brethren. Apple has dragged its heels with driver development for years, giving us
last-generation graphics cards with many features not available, H264 decoding being a prime example. And yet only a few people here are asking why, after years the latest OS can only support *****ONE***** GPU's hardware decoding. Windows has an exposed API anyone can hook into, and support from most graphics cards released in the last three years. Why aren't more OS X users angry that Apple, even with Quicktime, is still incapable of writing basic driver support for its hardware!!!???
And don't start trotting out GCD, OpenGL, OpenCL as if they are some
magic lemon-balm rub that makes everything better. GCD is not relelvant in this case, OpenGL is supported much better in Windows (Snow Leopard is still on 2.1, not 3.x), and OpenCL is an open source CUDA alternative, which has been in a usable state for far longer for Windows users (they have several shipping consumer and professional products that uses CUDA for computation).
Snow Leopard has regressed its graphics performance considerably:
http://www.barefeats.com/nehal16.html
And Macbook Pros are still unable to use Hybrid-SLI even though NVidia clearly support it, and is available on windows Laptops, and would so clearly benefit OpenCL!
As a graphics professional, this story of Adobe being unable to find a usable API on OS X, irrespective of what little childish rants we may throw at Adobe, really is an indication that OS X is in serious need of some fundamental changes to its graphics driver technology. The best overall OS in existence really needs some serious critical appraisal over the state of its graphics drivers!