What's the bet combination of bluetooth receiver and mapping software that will provide turn-by-turn voice directions for my Windows Vista laptop? Not deal breakers, but would still be nice to have are: Automatic rerouting after missed turns Ability to download construction updates to laptop when...

I have a technical question. Currently I have an iMate JAMin running WM6 and a Parrot bluetooth car kit (http://www.parrot.com/usa/products/3200ls-color). My iMate connects to Parrot when I get into my car and all my calls are routed through the car spearks by Parrot. After doing extensive research,...