A device and methods for operating a mobile electronic device are presented. A condition of the mobile electronic device is detected to provide a condition of use. Correspondence relation between inputs detected at a first input detector and a second input detector and the inputs to a first display surface and a second display surface are stored in association with the condition of use. The inputs detected by one of the first input detector and the second input detector are processed as the inputs to one of the first display surface and the second display surface based on the correspondence relation in association with the condition of use.