Interesting little gadget...the Gizmodo article (below) details a new nano technology (well, maybe not nano...micro, perhaps?) that allows people to track objects via Bluetooth signals on their smartphones. (Currently Android and iOS only.) These transmitters can be attached to anything, from car keys to wallets to expensive jackets/coats/etc. In short, anything you want to keep a track of short-range. Im'a gonna need about a dozen of these little gizmos for everything I don't want to be losing...including my mind!
This has a lot of potential for good...and for bad!