Patent ID: 8508480

Claim:
A handheld device comprising: a processor for controlling the operation of the handheld device; a lid having an inner surface and an outer surface opposite to the inner surface; a lower casing rotatably coupled to the lid, the lid and the lower casing being rotatable relative to each other about an axis of rotation such that the handheld device is movable between an opened configuration and a closed configuration; a primary display on the lid visible in the opened configuration; a secondary display on the lid visible in the closed configuration; and a non-flush navigation button located within the lid for accepting an input, the non-flush navigation button being accessible from the inner surface of the lid when the device is in the opened configuration, and being accessible from the outer surface of the lid and inaccessible from the inner surface of the lid when the device is in the closed configuration; the non-flush navigation button having a primary button orientation in the opened configuration and a secondary button orientation in the closed configuration, the secondary button orientation being flipped about the axis of rotation with respect to the primary button orientation; the processor being configured to execute instructions to: determine whether the non-flush navigation button is in the primary or the secondary button orientation based on whether the device is in the opened or the closed configuration; process navigation input accepted by the non-flush navigation button in a primary or a secondary navigation orientation corresponding to the primary or secondary button orientation of the non-flush navigation button, the secondary navigation orientation being flipped about the axis of rotation with respect to the primary navigation orientation; detect whether the device has changed configuration; and change the navigation orientation to correspond to the button orientation when the device has changed configuration.