With the release of iOS 7 last year, Apple introduced smartphone users to the iBeacon, a Bluetooth-based system that lets these beacons alert nearby phones of their presence, ultimately triggering some kind of action in software – the whole thing was painted as a slightly more long-distance version of NFC tags. For instance, Major League Baseball has been installing iBeacons in stadiums to work in concert with its “At the Ballpark” app. Over ...
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