US Patent 8483784 Mobile communications device having a rotatable member

A mobile communication device may include at least a lid member and a base member which are hingeably coupled together by a linkage mechanism. The device may include additional interface elements on an interface surface accessible when the device is in the closed position. A mobile communication device is provided which further comprises a rotatable member having an interface surface. The linkage mechanism actuates movement of the rotatable member from a first rotation state, such that the interface surface is accessible when the device is in a closed position, to a second rotational state, such that the interface surface is positioned between and concurrently viewable with inner surfaces of the lid and base members when the device is in an opened position. The linkage mechanism actuates the movement of the rotatable member responsive to movement of the device from the closed to the opened position and vice versa.