So back in October before this thread got started and N7 integration really developed this well, I started my own project of putting a full blown PC in the car. Nearly 6 months later, all I have is a half-working project and frustration. I think I'm about to jump ship and do this myself, but I have some reservations, so here are my questions.
OBD-II - Those of you running it to your N7 for monitoring, does it lag? Are you using Bluetooth?
GPS - Are there any issues with reception?
Handsfree phone - I assume the best way to go about this is to squeeze a basic single-DIN head unit with bluetooth behind the N7 like some of you have done?