When I lived in Boston, my iPhone 4 had amazing coverage and call quality was great. Never experienced a dropped call. Absolutely loved the phone. Then I moved

When I lived in Boston, my iPhone 4 had amazing coverage and call quality was great. Never experienced a dropped call. Absolutely loved the phone. Then I moved to Silicon Valley. I've been counting down the days for Verizon to pick up the iPhone, ever since. There's nothing wrong with the iPhone. AT&T, though...