Creepy Ghost Hunters-esque Video Game: Ghostwire

This is a weird one. You run around with your Nintendo DSi (which now has a camera) and just pop it open to scan a real place: the subway station, your office, the bedroom. And every once and a while, you find… gasp… a GHOST!! And then you talk to it, and it has a creepy voice. I like it, but not enough to get a Nintendo DSi. The game is called Ghostwire. Wooooo!