Siemens is now showing its new SL55 model. Featuring a slide-behind keypad in Nokia 7650 style, To achieve the smallest possible size when not in use, the SL55 has a keypad which slides up behind its display when not in use. When closed, all functions can still be navigated by means of the navigational joystick and the two soft keys. the new phone has an exclusive touch to it and sports a range of advanced features.