Taking hands-free to an unexpected venue, the seat belt with mobile compartment idea is, given that space isn't being used, and it's convenient for you to reach, why not put a little pocket right there? It looks uncomfortable and a tad ugly to me, but at €7.90 if you're a car-mobile junkie it might be worth a try - it's not like seat belts are that beautiful to begin with. Made of nylon with velcro and ...