The Sony Playstation Vita came out just a couple of months ago and has already sold over one million units worldwide. And it could be the next Foursquare killer.

The Vita includes things we take for granted: GPS (3G only), accelerometer, motion sensor, front and rear camera. All these are ubiquitous today but they are still new to the portable gaming community, especially GPS. 

Dennis Crowley envisioned a check-in game, but recently Foursquare has had to look for a business model, slowly moving it away from gamification and into local advertising. This is where an actual game could be different. Gamers are of a different vari