I have been looking for a better A2DP implementation that "actually works" but I am starting to believe that the standard just hasn't got enough bandwidth, or WiFi is interferring with it, or something. Everything I have tried, has stuttered. Cell phone - > headphone, W810 -> headphone, cell phone -> car stereo, W810 -> car stereo...

I have a hope that a stronger CPU might help but I don't have faith :B