Let me disabuse you of that notion: Stephen is more aware of what is going on the wider world than anyone else I know or have ever met. Like him or hate him, he's a true polymath. Our meetings will often wander off to the topic of famous Silicon Valley implosions, or Feynman stories, or the tales from the Institute of Advanced Studies, or the future of augmented reality.

So, with some knowledge of the man, I can say honestly that the charge that he's oblivious of the evolution of HTML is completely laughable. A random illustration: Wolfram Research was one of the first companies to go online in the early 90s (as it happens, Tim Berners-Lee is a long-time Mathematica user). An amusing story: it was also one of the only companies to survive the original Morris worm unscathed, owing to deliberate use of obscure Japanese computers for WRI's gateway.

While I can't talk about unannounced technologies, I can say that HTML5 plays a pretty crucial role in our future technologies. In fact, CDF will eventually have a server-side incarnation that relies on HTML5 for client-side interactivity.