As more and more of us get iPhones, and as the hardware and software technology improves, the advantages of using them as GPS units continue to grow. You’ve already got the phone, after all, and the software isn’t too much more expensive, but how do you mount them in your car? Perhaps on your dashboard? Arkon Resources would you like you to consider that option with their IPM512 : Mini Friction Dashboard Mount.

I really like the Magellan car kit. It works just as well as the TomTom kit and is comparatively priced. Actually, I think this cradle is more worthwhile since it’s more flexible in what devices it supports, which always makes me happy. Even if you don’t have the RoadMate app, you might opt to buy the Magellan kit for its charger, speaker, speakerphone and enhanced GPS reception for the iPhone on any other app (yes, even TomTom and Navigon).

So, you have the iPhone and the GPS app, but there’s still at least one more thing you need: a car cradle. You can’t just go driving with it in your hand, and it won’t work very well on the passenger side seat. In my endless pursuit of the perfect car cradle, I took a look at Kensington’s solution. It’s a great compromise between price and features, though I do hate using the word “compromise.”

What’s the first name that comes to mind when you think of GPS navigation? Likely TomTom, after all, they are known for GPS devices. But what about iPhone apps? Let’s take a look at how TomTom’s iPhone navigation app compares to the other big names in navigation on the App Store.

According to Yann Lafargue, PR for TomTom, the much anticipated TomTom iPhone cradle will do more than just keep your iPhone’s battery topped off. Its GPS enhancing abilities seem to take advantage of the dock connector on not just the iPhone, but also the iPod touch to enhance (or to add support for) GPS.