Video Review - Ingress (iOS)
Ingress comes from Niantic Labs and is a location-based area control game. The game has a narrative but its obtuse and inconsequential so all you need to know is that there are control points (portals) that your team needs to attack and capture. Since this is GPS driven, you're probably going to do some walking/hiking/climbing/trespassing, sort of like a neo-geocaching (can I trademark that?). For more (including my dirty iphone screen) check out the VIDEO REVIEW.