News from Macworld regarding the upcoming TomTom iPhone Navigation App, and accompanying hardware:
iPhone owners will be able to purchase and use the TomTom software and maps without the Car Kit hardware accessory; however, the Car Kit for iPhone was designed to enhance the software by addressing several of the limitations mentioned above.
I’m tempering my excitement for this offering until some specific pricing details are available. It seems plausible TomTom might be adding a slew of “features” to the Car Kit as a way to justify a hefty price tag.

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