We now have a full house of exchanges that trade ether against fiat: Coinbase, Kraken, BTC-E, Bitfinex and Gemini.
Most importantly, we have an even fuller house of exchanges that trade ETH/BTC. And this pair is the most liquid.
This is *good* for crypto as a whole. In the unlikely event that Bitcoin does stagnate or fail, we have everything in place to move on from that kind of disaster. If for some reason Ethereum stagnates or fails, we can continue with on as well. Big money needs something to hedge against, and now they are getting it in the crypto world sans fiat. Religious wars aside, this is a positive for everyone and is IMO a necessary requirement for economies to start leaving behind the fiat world in bigger and bigger ways.