I wouldn't mind this so much except for the fact that since every system sound (including opening and closing programs) is piped to the headset which runs the battery down extremely quickly making using a bluetooth headset with the n900 impractical. Which is a shame because it seems I will have to ditch the n900 just because of this.

Also there is already the a2dp profile which was designed to transmit mp3 quality multimedia audio from the phone whereas the headset profile is heavily compressed with a 8khz sampling rate that was only designed to be as good as the gsm call not to mention being mono.