thats awesome! I always thought it would be fantastic to be able to use the NXT as a remote stereo controller; I even brought my NXT to school with me with that in mind. (Right, we all know how much free time there is when in school.) So of course the next steps are of course waveform graphs on the screen, live mp3 decoding, and a physical audio jack to control speakers, right?
PS. great song choice.