MetroPCS began selling the ZTE Score M via its web site today for $49.99 after mail-in rebate. The ZTE Score is a variant of the Score sold by Cricket Wireless. MetroPCS’s version has a slightly larger battery and is slightly thicker, though other features remain unchanged. The Score M is an Android 2.3 Gingerbread smartphone with a 600MHz processor, 3.5-inch HVGA display, accelerometer, 3.2-megapixel camera with video capture, and Wi-Fi.