This year’s official Cannes Lions International Festival of Creativity app, released on Monday in conjunction with the event, sports integration with Apple’s iBeacon technology to offer attendees a personalized experience featuring relevant content surfacing and meet-ups with like-minded event-goers. 
More information: http://appleinsider.com/articles/15/06/22/ibeacon-tech-at-cannes-lions-2015-connects-attendees-promotes-content-discovery