WiFi connects us everywhere, such as in parks, subways, airplanes, coffee shops and public WiFi hotspots. The WiFi Alliance says there are more than a million hotspots worldwide, and a report by market research company Informa Telecoms and Media (Informa.com) reports that Wifi hotspot numbers are set to grow to 5.8 million globally in the next four years.
http://robertsiciliano.com/blog/2013/10/18/streamlined-passpoint-wifi-coming/