Patent ID: 7697955

Claim:
A casing for a handheld device defining a generally planar operating face, for providing an input mechanism and a display region, wherein the generally planar operating face comprises a face in a plane and has a first axis that lies in the plane defining an operation orientation of the device, the casing providing first and second side sweeps confronting each other at respective ends, the confronting side sweeps defining the perimeter of the generally planar operating face and providing first and second discontinuities at their respective confrontations, the alignment of the first and second discontinuities defining a second axis that lies in the plane along a single longest span of the perimeter of the casing and intersects the first axis at an angle in the plane, wherein the first side sweep has a first length along the perimeter between the first discontinuity and the second discontinuity, greater than the longest span and as the first length is traced from the first discontinuity to the second discontinuity along the perimeter a displacement of the perimeter from the second axis increases and then decreases and wherein the second side sweep has a second length along the perimeter between the first discontinuity and the second discontinuity, greater than the longest span and as the second length is traced from the first discontinuity to the second discontinuity along the perimeter a displacement of the perimeter from the second axis increases and then decreases.