BT-Q890: Qstarz BT-Q890 Nano Keychain Bluetooth GPS Receiver (66 ch MTK, 1-5Hz User Configurable, Auto On/Off)
This QStarz GPS just didn't work for me.  I was able to establish a bluetooth connection with the Blackberry Curve 8320 phone, but when I left the GPS outside on the balcony pointing straight at the sky it found satellites a couple of times, but then lost the connections shortly afterwards.  I tried twice, for approximately 15 minutes each time.  When I did establish brief connections in various other positions my location was given as much as a block and a half away from my actual location, and the locatio