I just got my Droid last Saturday. Sometime on Sunday, I paired my bluetooth earpiece with the phone and then tried to make a hands-free call... nothing happened. I paired with another bluethooth earpiece I have and, still, nothing happened. I thought I was doing something wrong, so I did some searching for more information and found that Android doesn't support hands-free bluetooth phone operation. :O
I did a lot of research on this phone before deciding to make a switch and it didn't even cross my mind that it wouldn't support this basic feature that is standard on virtually every dumbphone on the market, let alone smartphones.
I'm reasonably confident that Google will do something about this through an update of some kind, since it is #2 on their list of Android issue requests (#1 is Arabic language support, last I checked), but how long it will take is anybody's guess.
-SR-