For some inexplicable reason, Nintendo and Toyota have teamed up to turn the Nintendo DS into a navigational remote control, thereby allowing drivers (although I hope passengers do most of the fiddling) to set their routes using their game consoles.
The service, called Kuruma de DS lets you see map and destination info as well as tour information as you drive through town. The service slightly gamifies the experience by adding a POI saving option.
The compatible Toyota Smart Navi system costs about $3,000 while the game itself costs $92 – quite a bit of cash to simulate the map screens in Super Mario World. The DS connects to the car via Bluetooth and includes quiz games and delightful Mii characters who show you around town.