Devices, systems and user interfaces for simplifying control of portable computers are provided. For example, a system for simplifying operation of a computing device may comprise a frame defining a receptacle, the receptacle being sized and shaped to receive a computing device; one or more controllers disposed on the frame; and an electrical connector disposed in the receptacle for electrically connecting the frame to the computing device, wherein, when the frame is electrically connected to the computing device, the one or more controllers are enabled to operate the computing device.