Patent attributes
A handheld electronic device has a central part comprising a display and two pivotable elements. The pivotable elements are pivotably linked to the central part such that the pivotable elements are moveable between a compacted configuration and an extended configuration. Both of the pivotable elements are stacked on the central part and adjacent to each other when in the compacted configuration, and extend outward from the central part in the extended configuration. The pivotable elements each have a first surface accessible to a user in the compacted configuration. A first set of keys is disposed on the first surfaces. The pivotable elements each also have a second surface that is accessible to the user in the extended configuration but not in the compacted configuration. A second set of keys is disposed on the second surfaces.