The LG Doubleplay on the T-Mobile network is a pretty unique device; this is because of the smaller secondary screen on the slider portion under the main screen. Both of the screens are touch screens and can be used simultaneously. The secondary screen is sandwiched between the two halves of the QWERTY keyboard and displays 8 out of 9 possible built in apps. Each of these apps works to give the user a bit of extra functionality against the main screen. This is one of the best Android Gingerbread phones on the market, get the best pricing on one by ordering online today!