I have a sprint treo 650 and the bluetooth sucks. Volume is very low in the wireless headset and I'm wondering if the unbranded/unlocked version that's available directly from palmone has the same problem? I don't want to have to mess around with the btmute hack. I just want it to work. Does it? I am moving back to tmobile because of service issues w/sprint and would consider buying an unbranded 650 from palmone to use on t-mo but want to know if it works as it should. I've read that the dun is there and works fine. That's great but I use a headset 99% of the time and need to be able to hear! Can someone please help me out? By the way, how is the reception on the t-mo network in San Jose,CA/Bay Area with the 650? Thanks in advance...