An electronic apparatus that includes a display panel having opposite sides with a display screen provided on one side, a main body enclosure having opposite sides with a key-based input device provided on one side and a keyless user interface provided on an opposite side, and a hinge assembly which couples the display panel and main body member together. The hinge assembly is configured to allow the main body enclosure and the display panel to pivot together about an angle of up to substantially 360° about a common or parallel pivot axes and which hinge assembly further allows the main body enclosure to twist or rotate with respect to the display panel about an axis that intersects or bisects the common or parallel pivot axes about which the main body enclosure and the display panel to pivot. In further embodiments the hinge assembly is further configured to allow the display panel to twist or rotate with respect to the main body enclosure about an axis that intersects or bisects the common or parallel pivot axes about which the main body enclosure and the display panel to pivot.