I have a Nokia 6315i which has both bluetooth and GPS.

Can I use this with the N800 and Maemo Mapper or do I need to subscribe to Verizon's "navigator" service in order to activate the phone's GPS?

I have to say, if I can use my existing cell for free GPS navigation, it makes the N800 look a LOT more interesting!

Is there a handy link to learn more about this?