missing the point
I think this article misses the point of Chromecast completely. Google doesn't need to own the TV industry, it doesn't care if your watching netflix or vimeo as long as your sending it to your chromecast so it can keep track of what your watching and target you ever more accurate ads.
Yes sky has released a dongle already but the fact that noone has heard of it proves they don't have the ideas or ability to get a a mainstream platform going.
I'm sure a lot of people have smart tv's which run youtube fine but how long before the next biggest thing comes along that doesn't support your 3 year old samsung telly? I would much keep my tv as dumb as possible and opt for a detached platform that gives me the best ongoing developer support.
For the record i don't have a chromecast, i use raspmbc which works fine from my android phone (via airplay i think) but the minute i think there's an app which would stream better to chromecast than it does to xmbc, i would seriously consider buying one.