AT&T won't give up. The company continues its legal battle with Verizon over what it says are misleading advertisements that Verizon Wireless has produced regarding the carrier's 3G coverage. AT&T issued a letter to customers so it can "set the record straight" on Verizon's ad campaign. In the letter AT&T notes that its 3G coverage covers 75 percent of the U.S. population, and that 96 percent is covered by its EDGE data network. Article (sub. req.)