The TomTom Car Kit for iPhone is now available for ordering online from the Apple Store in the U.S. and the U.K. The kit, designed as a companion accessory for their TomTom iPhone app (iLounge rating: C), sells for $120 and does not include the TomTom iPhone app; it must be purchased separately from the iTunes App Store for $100.
In addition to mounting the iPhone 3G or 3GS, the accessory can charge either model, and adds an additional microphone and speaker for hearing voice guidance instructions and making hands-free calls. An audio output jack is also provided for connecting your iPhone to your car stereo. More notably, the device also promises enhanced GPS performance even in urban areas through a built-in GPS receiver in the car kit itself.
Contrary to initial suggestions of iPod touch compatibility, it is listed as working only with the iPhone 3G or iPhone 3GS.
Note that the U.S. Store lists no availability or ship date, while the U.K.