A2DP has been enabled since the previous Beta, I've been using it for over 3 weeks...
However... no volume control enabled yet.
My Torch 9810 and (shudder) 4th gen iPod have A2DP volume control. It's annoying to use a BT enabled audio receiver and have to dive for the stereo volume control because the PB is cranking the audio full blast.
the A2DP on the previous .6849 was unstable, with this build i am not getting any disconnect. You are right I hate not having volume control but I believe that will be out on the next beta or at least when finally released.
check out the video dude has a nice concept going.c