Pros: Combines microphone and loudspeaker amplifier, in addition to reference-standard GPS-receptrion. All this through a industry-standard bluetooth connection compatible with most software. In addition aux aut will let you connect to a modern car-stereo.
Cons: Pricey, and an FM sender would make this product perfect
Cons: The weight of the wire is enough to pull on the unit -- when in horizontal mode, the smallest bump pulls the phone down to vertical mode. The swivel is just WAY too weak. All this waiting... extremely disappointed. Going to try to get my money back.