I can't say I'm tremendously surprised at this. The writing has been on the wall for a while now. As to whether it's a good thing, from a business and user POV, I'd argue it is. But from a developer standpoint, I can't say that the prospect of writing any kind of significant client in javascript fills me with optimism.
Now I realise that there will always be native and .net client development on windows. No-one is going to write Visual Studio in javascript (or at least, it's highly unlikely), but if HTML5 is "the way", well, ask a wpf developer how confident they feel about Microsofts commitment to that platform.
Or am I just being a grumpy old man? Kids these days, writing damn thin clients, etc!!
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