GPS::Tron , by Thomas Winkler, combines GPS, Bluetooth and GMS or GPRS with the classic Tron game concept – mobile phone plus computer game.
The player’s movements in real space, which are tracked by GPS and transmitted to the phone’s display, influence his/her position in the game. Each player is represented by a line that gets longer and longer. But the player’s own line is never allowed to cross itself or the opponent’s line. Which makes the game harder as time passes. The goal is to drive your opponent into a corner so that he can no longer extend his line without breaking the rules and losing. This is a game for two players who can be geographically distant from one another.