Treo 650 - Unlocked - Using Cingular
Blackberry 7100g - Tmobile
Blackberry 7250 - Nextel
Moto Rokr - Cingular
Treo 600 - Sprint
Samsung - Forget the model - Verizon
and One other

All with full unlimited data plans. I can connect every other BT device to these phones other than the 770 IE keyboards, mice, headsets, etc.

All I get from Nokia support is "uhhhhhh buy a nokia phone" Horrible tech support