AT&T, not known for their robust cellular network, has been working diligently in recent years to take the pressure off by offloading connections to their various public WiFi networks, which include their growing number of city hotzones, as well as their network of 29,000 retail WiFi hotspots. Apparently, this strategy has been working. This week, AT&T announced that they saw more than 300 million WiFi connections in the third quarter of 2011, an average of 37 connections per second. This is a 282% increase, year over year, and the actual data going across said connections has doubled since last year.
For additional information, see http://www.broadbandreports.com/shownews/ATT-300-Million-WiFi-Connections-in-Q3-116756