The story of wireless connectivity in densely packed venues for sports and large-scale concerts has been mixed ever since the dawn of voice-based services. There were always bottlenecks susceptible to loss of service and the situation initially became worse following emergence of data services with 3G. At first, WiFi stepped into the breach, perhaps reaching its apotheosis at the London 2012 Olympic Games, where BT was able to present its WiFi implementation as a triumph that largely met users’ expectations. This followed the very limited deployment of WiFi at the preceding 2008 Beijing Summer Olympics. The 2012 London deployment involved what BT at the time claimed was the highest density wireless network so far deployed. It served thousands of spectators…