The unreleased Samsung Intercept for Sprint seems to have been sold prematurely over at Best Buy Mobile.  The device, which is expected to be available on July 11, was sold accidentally by a Best Buy Mobile employee and has shown up on YouTube in all its glory.  The entry level smartphone sports Android 2.1, a 3.2-inch touchscreen, and a slide-out QWERTY keyboard that looks very much like the one found on Sprint’s Samsung Galaxy S-based Epic 4G.