The MirrorPilot is a GPS navigator integrated in a rear view mirror. The MirrorPilot gets rid of the nasty cables and the suction cup holder you have to endure with the common GPS devices.

If you buy a new car you pay through your nose to have an integrated GPS navigator. The innovative MirrorPilot gets you an integrated GPS solution for 700 Euro (~$1,000).
The makers (paragon and Magna Donelly) also highlight the security aspect of having the maps displayed in the rear view mirror. This way you check where you go and also see what is going on behind you.

The MirrorPilot has state-of-the-art navigator features including ANTARIS 4 Chipset with SuperSense, 2D and 3D maps, voice, and TMC. The display inside the mirror has a size of 2.2 inch and QVGA resolution.
Currently the MirrorPilot is available only in Europe with pre-loaded maps of European countries.

The MirrorPilot should be installed by a car shop.
More details on the MirrorPilot Site (German). The MirrorPilot will be exhibited at the CeBit 2008.