This document discusses using iBeacons with Xamarin applications. It begins with an introduction of the presenter and an overview of Bluetooth Low Energy (BLE) and iBeacons. Real-world applications of iBeacons are shown, such as for retail stores and indoor navigation. The document then explains how to detect iBeacons using the CoreLocation API in Xamarin applications and defines related concepts like CLBeaconRegion and CLBeacon. It concludes with a link to a sample iBeacon application and instructions for obtaining free iBeacon devices from Gimbal.