Some cranky cultural critic will point out that wearing this is a bit like being Lojacked to your cell phone, but for most of us, this device is genius. It tells you when your cell phone is ringing by buzzing your wrist, and if you get more than 5 meters away from your phone, it buzzes to let you know. No more missing calls in noisy bars, and you'll never lose your cell phone again. From ThinkGeek.
