From Slashdot.org:
An anonymous reader writes "Sony has introduced three Linux-based in-car navigation and entertainment devices in Japan today. The NV-XYZ 33, 55, and 77 feature 3D map navigation technology, media players, hard drives, GPS, and PC connectivity. They are based on MIPS processors and a Linux 2.4-series kernel. They also appear to use a GateKeeper copy protection scheme, which may prevent them from being used with Linux desktops and normal media files." Still, the 3-D representations of actual buildings on the maps is pretty impressive.