The best Android Phone on Each Carrier

A reader writes: These Android smartphones look pretty hot. It seems they can do everything the iPhone does, but they come in more flavors, from more companies. So what’s the best one to get?

Dear Reader: The Android operating system may be the first serious competitor to the iPhone platform — with a slick interface and tons of cool applications. Unlike Apple’s tightly policed Apps Store, Google’s Android Market lets you download any program written by any developer.