He didn't say that bluetooth couldn't do that, he said that he wasn't aware of any mobile phone devices that had been manufactured that supported it.
I don't think anyone expected the presenter to be an expert on the features of every bluetooth mobile phone and he did qualify it with saying that he wasn't 'aware' of any such device rather than saying there wasn't.
I'm not convinced such a setup would be that good in any case.
The ideal solution for me would be a pocket pc phone edition along with a bluetooth headset with voice recognition, with either a wired or wirless remote control unit for the PPCPE which allowed changing volume, media tracks (both good for mp3 playback), selecting/typing phone numbers (for interacting with the phone).
We can but dream
