Verizon cripples all the Bluetooth features of their phone expect for the hands free headset. I had talked to different managers and tech guys from the HQ and they bluntly said they do that to force you to use their network so they make more money. For example there is no way for you to print your picutres to a BTprinter, or transfer files or address book between your pc and phone using the BT.
However, Cingular does not mess up your phones BT. I HATE VERIZON.