Not to knock cellophane tape as a method for in-car iPhone navigation, but if you want to use the new TomTom app in a more proper setting, you’ll want the official TomTom car kit. In addition to enhancing the GPS signal and charging your iPhone, it’s also got hands-free dialing and a speaker that’s (presumably) better than the phone solo for giving directions. At a rumored price of just under $200 with software, it’s not a bad deal if you were planning to shell out $100 for the US maps, anyway. We’re still on the fence, but the…