I keep reading that A2DP headphones sound terrible, but I've never found this to be the case. I don't claim to have audiophile ears (far from it), but I'd like to think I'm a little more discerning that average, being a musician who values good audio. I'll admit that I've had limited experience with bluetooth audio, but what I've heard was decent.

At the moment, I have an A2DP receiver in my car that I use with my Blackberry Curve. I think it sounds just fine. The high end doesn't sound muddled, and I get sufficient bass as far as I can tell. I haven't done a side by side comparison, but it sounds fine with me.

Besides, I don't think Apple's standard earbuds are anything to write home about. I'd be very surprised if they even sounded as good as something like the Jaybird.

My guess was that Apple didn't include A2DP because it might drain the battery too much. I wouldn't be surprised if audio quality was an issue too, though. I just don't hear it