AT&T says in its complaint: "In October, 2009, Verizon embarked on an advertising campaign designed to mislead consumers about the scope of AT&T's wireless coverage."
To support that conclusion, AT&T commissioned a study of people in a shopping mall who had seen the ad. AT&T says "almost one in four" thought the ads meant that AT&T provided no wireless coverage in many areas of the country. The lawsuit does not state how many people were interviewed, nor does it explain how the questions were posed.
I got this info from this article HERE and agree with its author. The ad says 3g coverage, not all at&t coverage. Just because some viewers don't pay enough attention it should not be verizons fault.