If I had to make a guess, it hasn't been added to Google because there is no concrete set exchange that people use on a daily basis more than another. Mt. Gox's recent publicity indicates that it wouldn't be a reliable source. CoinBase? Btc-e?
Mt.Gox has been an unreliable source for the exchange rate for quite awhile now. Bitstamp is pretty much the current gold standard for USD<->BTC rates (Coinbase and BitPay are based on the Bitstamp rate).
DuckDuckGo also supports BTC conversions (through Wolfram|Alpha):
That's okay, Google will one up that by doing a Dogecoin converter.
Much wow.
;)
I have a hard time seeing them adding more useless crap to their interface as beating anyone.
Microsoft didn't beat Google at anything.
They still have Bing
I suppose this is nice in a 'get new people to try bing' type of thing, but what is really going to be the tipping point to make people leave google for more than kicking the tires?
Is this really HN-worthy? I'd expect to find this on reddit.