Apple’s iBeacons explained: What it is and why it matters
Apple subtly introduced iBeacon as part of iOS 7 at WWDC 2013, though it mentioned the feature only in a single keynote slide and didn’t go into detail at all. But this hasn’t stopped companies from taking advantage and launching products and services that make use of iBeacon.
More information: http://www.pocket-lint.com/news/123730-apple-s-ibeacons-explained-what-it-is-and-why-it-matters