So here's the history. Over the last few years we've had AT&T Wireless phones. The service has always sucked big time, especially at my home and at my office (Hello? Where am I the most often? At home or at my office...) Finally I decided, now that I can port my number across to kill two birds with one stone: - first, I can ditch AT&T Wireless and get a carrier who knows both about coverage and customer service - second, I can get a phone that is tri-band and I can use when I travel to...