Uh, yeah, in that part where what I said it is a nice hack at the beginning, but what we need is official support or a simply 3rd party plugin at the end...

For real a2dp support, you'd need to use DSP gateway to write a SBC-compatible transcoder (input sink and output sink), as well as rewriting the mp3 sink to perform as a transcoder instead of an output sink. You'd then FIFO the two together in DSP transport buffer memory (or combine them into one unit, but SBC is the lowest-quality option for A2DP and we'd want to use MPEG/AAC/ATRAC as appropriate later, wouldn't we) and then out via the ALSA output sink plugin to BlueZ.

Short answer:

There is no way to get this feature working acceptably without some DSP and codec hacking, which is pretty far beyond the average dev.

I've managed to get A2DP working on my N800 and seems to work wonderfully, except for one problem.
If my headset is also connected to my phone (using HFP), then the audio output from the N800 constantly stutters. It doesn't seem to be related to the headset since I have no problem using A2DP from my PC while at the same time being connected to the phone.
Does anyone have a similar problem or have any idea how to sort it out?

I did search but still may double post, but here goes... Does this a2dp hack work in 770?

I too hate anything overly cli but I wanted to try it out. Guess what, I didn't type a single letter into terminal. The way the instructions were laid out (thanks Milhouse btw!) was dead easy to follow. All I did was copy and paste, switching between opera and terminal. At most I had to press the return key. It was well worth it.