PerBlue’s location based game Parallel Kingdom was featured in UK’s The Guardian in a story called Location: Facebook edges closer, while rivals plough on. From the link:
Parallel Kingdom started as a role-playing game where users had to move in the real world to move in-game. Users reluctant to leave the sofa thought that “sucked”, so now they play with other characters in a region of a Google Map, trading items, fighting and using instant messenger. It has 125,000 registered users and 15,000 regular weekly players.