Sounds confusing? Actually it is a very curious and innovative game-concept from students of the University of Michigan. I hope to see a lot more original apps like this in the AppStore. Game will make your daily outdoor exercise routine fun and playful.  Players need to physically walk around town as they go about their daily lives to find virtual letters spread around and post words on the fly. This game is pervasive and does not require any time or spatial commitment, sessions can last weeks.