AT&T has created different mobile calling models for every major city in America as it tries to improve a network that has come under fire for poor performance as the data-friendly iPhone has proliferated, ... [read full story]
Walt Mossberg, John Donovan, Phones, Cellular telecommunications, Telecommunications, Wireless & Cellular Telecommunications, Telecommunications Equipment, Information & Communication Technology, Cellular Phones, Cell Phones by Brand, Gadgets, iPhone, AT&T, Wall Street Journal, United States of America, Bay Area (California), North America, California, San Francisco (California)