Samsung have got a new phone, the Samsung A640. It features a 128×160 main screen, a 80×64 OLED outer screen, the requisite VGA camera, Bluetooth, and operates on Sprint’s network. This Samsung A640 is also compatible with Sprint’s Ready Link service. The OLED outer screen keeps its background black to match the rest of the phone and making this cellphone of the best looking Sprint phones out there. In retail stores the A640 costs $49.99.