OMG! This is a brilliant app! And travelers will love it too. Just attach, stick or drop your Tile into any item you might lose: laptops, wallets, keys, guitars, bikes—you name it. Then, when the item goes missing, all you have to do is whip out your smartphone to track them down or make it ring. There’s no batteries, and it works with iPhone 4S, iPhone 5, iPad Mini, iPad 3rd and 4th gen, and iPod Touch 5th gen. There are limited quantities but you can preorder now for $24.95.