Edit: I missed this: "Plus, Echo is Bluetooth-enabled so you can stream your favorite music services like Spotify, iTunes, and Pandora from your phone or tablet," which obsoletes some of the below. The point on monophonic audio still stands.

Out of curiosity, are you already embedded in the amazon cloud music ecosystem? I'm one of those luddites who still has a library of mp3s—I don't want to have to figure out what I can or can't get on some compatible streaming service here. That would be a lovely feature—if it had an aux-in port or bluetooth compatibility so I could still use it as a dumb speaker. Smart TV's still have inputs, e.g.

Additionally, if I'm not mistaken, it's monophone? Dual-driver, but only one "360-degree" channel of some sort?