Not to be put off by Apple’s silence, we dug through Apple’s patent library and found a few likely applications of the U1. iBeacon, Apple’s long-ignored location-awareness tech—mainly used in stores and museums to pinpoint customers and serve localized promotions—could be the next big candidate for UWB. It would allow for even more precise location tracking than Bluetooth Low Energy, which iBeacon currently uses. So instead of a store knowing you’re shopping in the Baby Supplies section, UWB-equipped iBeacon could see that you’re specifically looking at baby bottles, and serve you relevant ads about baby bottles on your smartphone. As of this writing, it’s unclear whether a tin-foil hat will serve as a viable UWB adblocker.