What GPS-app do you use on your iPhone? I installed one from MotionX that set me back around $3. But now we have another option, thank to TomTom with its new turn-by-turn GPS navigation. After a long and massive development, finally the TomTom’s app for iPhone is ready for iPhone 3.0 OS. And luckily TomTom also offers a “car kit” to hold the iPhone on the dashboard.

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