With iOS 7, Apple introduced iBeacons, a protocol that uses Bluetooth Low Energy (BLE) to determine your location down to within a couple feet. We’ve already seen some innovative uses of iBeacons — for example, Tile uses it to help you find your lost keys and other items, while Apple uses iBeacons in its retail stores to alert customers about discounts on nearby items. But iBeacons are just getting started, and Gizmodo alerts us to one of the more interesting implementations of iBeacons from a company called Tzukuri. Tzukuri put a tiny (3 millimeter) iBeacon chip in its sunglasses to alert you when you’ve accidentally left your sunglasses behind. When your sunglasses are more than 16 feet away from your phone, you’ll get an
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