5.1 channel streaming music
I guess I haven't kept up to date on audio codecs. aacPlus is a codec that can stream 48k data at 128k mp3 quality. This opens the door to streaming 5 channel audio, cell phones, and who knows what else. Mp3 is pretty old if you think about it.
http://www.codingtechnologies.com/products/aacPlus.htm
http://www.codingtechnologies.com/products/aacPlus.htm