I find the fact there is no good integration solution for iPhones and cars quite puzzling. It's very much a heath robinson feel to the TomTom solution, another TomTom related problem is the volume on the cradle. It doesn't remember the last volume setting, so when you power it down, or even just remove the iPhone the next time it is back to near minimum volume. annoying.

The bluetooth audio explains the poor quality, maybe I will have to rethink this whole solution.

I have tried the TomTom app both with and without the cradle for navigation and the GPS in the cradle is clearly much better than the one built in the iPhone. It gets a lock amazingly quickly and never lost it once during the few hundred miles I did yesterday. The standard GPS jumps about a bit and seems to lag behind causing the voice prompts to be given quite late on some occasions. So I need the TomTom cradle for GPS and the mounting solution, and the parrot for just about everything else!

Cheers

Cris.