Bluetooth works erratically. The problems I had with it yesterday was for a while pushing the next-track button sent MediaBox into a frenzy acting as if the button had been pressed multiple times and making it play a fraction of a second of a song before skipping to the next, this went on for about 20 seconds until I pressed the stop button to put it out of its misery. Afterwards it worked correctly - until - the problems I'm having with it right now is that pushing next-track on the headset makes MediaBox skip to next track but doesn't play it, I have to press "play/pause" button twice to "stop" and "restart" play (I can do this either on the N900 or on headset).