A new class action lawsuit has been filed against AT&T charging that the once-exclusive carrier of iOS devices (iPhone, iPad) has been overcharging customers by 300 percent for data usage. The lead plaintiff, Patrick Hendricks and his attorneys hired a consulting firm to test data transmitted and received by an iPhone. The research firm came to the conclusion that AT&T was overcharging for data. The research also found that AT&T customers continued to be charged for data even after iOS devices have been rendered incapable of transmitting or receiving data.
In November of 2010 AT&T settled a class action lawsuit called "the AT&T Mobility Settlement." In that one plaintiffs accused company improperly taxing its smartphone customers for Internet usage.
In 2010 the company ended its unlimited service plans, with new customers offered the option of a 200 MB or 2 GB monthly data plan. Verizon will soon launch iOS devices this month with unlimited service plans.