The DS Lite could see society's next great advancement in GPS technology, at least in tourist-heavy areas such as museums and haunted-home expeditions, a patent from Nintendo's Shigeru Miyamoto suggests.
The patent describes a system where an overhead grid of infrared "positional information transmitters" reads a user's DS to light up floor patterns and potential walkways. The user can then pick which route he'd like to take, reading tourist facts along the way.
Nintendo has already infiltrated the museum scene with the 3DS giving guided tours in the Louvre, and it's doing a pretty great job, from what we hear. There's no guarantee that a patent will translate to an actual product, but the thousands of infrared beams hovering over the Mona Lisa fulfills a few of our own spy fantasies, so we'll hope this one works out in some way.