I use the Pharos iGPS-BT unit. Never had a problem with anything receiving from it, and has a cold acquisition time of 30 seconds or less. Nice thing is the GPS unit slides out of the bluetooth base and can be used via USB with an optional cable if you want to use it on your laptop. Works fine with TomTom 5 and 6, pocket streets, and ALK Copilot. The battery is also as easy to replace as the one in my 6700... just slide it out and replace. (although 1 year of constant 7-10 hour per day use and still holds about 5 hours charge). Think I paid $80 at CompUSA. Plus it's a groovy clear plasic case that glows blue with the status LED!
namopereht