They have a lot of smartphones (http://www.wireless.att.com/cell-phone-service/cell-phones/p...) to average the usage numbers over and push the percentages up. I wonder what the iphone percentages are.
"He said 65 percent of the company’s smartphone customers tend to use less than 200 megabytes a month, and 98 percent averaged less than 2 gigabytes." http://www.nytimes.com/2010/06/03/technology/03phone.html?sc...