Interesting new product. The Tile (found at http://www.thetileapp.com) is a small device that allows you to find your lost goods via an app on your phone. It seems to emit some kind of signal that allows your phone to tell you how far you are from it. This is great since I do misplace my keys often enough. It also has a mode where you can flag something as a lost item and any other tile user who gets close to your tile will send you an alert.
All in all I really dig it and I’ve put my order in. I worry for the would-be vigilantes of the world though. The closer we get to having the kind of gadgets you’d find on Batman’s utility belt, the more I worry that some poor sap will put on a cape and cowl and get themselves hurt. They should include some kind of “is there a tile that some person has put on me like a bug” mode too.