So, I'm not entirely sure if this is related... but I just got a bluetooth headset with A2DP for my N800. It works great! There are two problems though.
1) When the headset has been turned off for a while and then I want to use it again there doesn't seem to be any easy way to tell the N800 to search for it. The only way I have figured out how to do this is to go into the control panel, then bluetooth, then devices, then delete my headset as a "trusted device". Then select "new" and have the N800 search. This is a pain in the ***. Has anyone figured out a better way?
2) When there is no sound coming from the N800 the headset beeps in my ear in the most irritating way every 3 seconds or so. Is there a way to change the settings so it won't do this?

Edit: I have read the entire "A2DP: it works, help me test it?" thread by Johnx. It is now clear to me that what I actually have going is an A2DP capable headset that is communicating with my N800 via the HSP protocol and working through both earphones. The issues I mentioned above are still annoying as heck though. Can anyone help me with these?