Of all the software brought out to demonstrate the developing capabilities of Apple iPhone OS 3.0, the most interesting has to be TomTom's turn-by-turn navigation app. Both a software app and an accompanying car kit were announced, complete with Points Of Interest (POIs) and both 2D and 3D mapping.
Video demo after the cut
There's also portrait and landscape modes, with the mapping automatically rotating to suite. TomTom have given the app a night mode, which changes the colors to low-glare alternatives, and the car kit will support the iPhone in both orientations.
The kit also supplies power to the iPhone, and can be used to "enhance GPS data" presumably with some sort of integrated GPS antenna of its own. Meanwhile it also has a speaker and microphone for hands-free calls. We don't yet know how much software or car kit will cost, though something tells us it won't be all that cheap.