Have a look at my co-conspirator's blog post about Choir:

http://alexdong.com/choir-dot-io-explained/

We definitely see Choir fitting in where you can't look at or interact with a screen. Cars and wearable computing are areas we're excited about. First, though, we want to experiment on the desktop, find out what makes a good audio interface, and solve our own burning needs regarding more mundane monitoring situations.