I've gotten the treo 700p to pair with the BMW BT, although there are a couple of bugs. First, when receiving a call, the number that shows up on the Nav screen and the MID is the last number that called, not the current caller. Also, if you pair with the BT, turn off BT on the phone, then turn it back on, you have to do a soft reset with the phone, otherwise, the call will go through the phone instead of the BT system, even though it pairs back up. Aside from that, it pairs OK.