A friend at work went to cirque du soleil over the weekend in Auckland. The show was just about to start and he was sending text. Half way through he got a message pop up on his phone (throwing him out of the SMS screen) saying to "please turn off your radio device". It didn't appear to be a text message but some sort of alert. It appears that the message was broadcast by the organisers of the show. The cirque du soleil website clearly states that you get one warning if you use your cellphone during the show, then you get ejected. Seems like the organisers of cirque du soleil really really dislike people using their mobile devices during the shows.
But really is this legal? What technology would this be? It was an iPhone 5, could this be iBeacon?

