That opens up the possibility of putting virtual objects into the real world, letting you "pick up" a computer-generated 3D architectural model and spin it around in your hand, for instance, or gesture to control a virtual display appearing on an actual wall.

ENGADGET

The laptop uses the GPS data to maintain a 3D model which keeps the vehicle correctly positioned in the virtual world, and much "like a novel, " the story unfolds as different turns (ahem) take place based on the decisions players make.

ENGADGET: Backseat Playground to integrate GPS into in-car gaming