T-Mobile USA today announced the national availability of the T-Mobile G1, the first Android-powered mobile phone. The T-Mobile G1 combines full touch-screen functionality and a QWERTY keyboard with a rich mobile Web experience, dozens of Android Market applications, and popular Google products that  including Google Maps Street View, Gmail, YouTube and others. Beginning today, consumers can purchase the phone in select retail stores across the country and online at http://www.T-MobileG1.com.