“Of course being Apple, the sensor based controls are positioned beneath the surface of the iPad so as to not to appear as hard buttons of yesteryear,” Purcher reports. “Although Apple has already been granted a patent regarding backside controls for the iPad, we find that today’s revelations build on this foundation with specifics aimed at video games.”
Purcher reports, “Apple states that utilizing a surface as the input allows for application-specific input devices to be implemented. For example, the surface may be utilized as an input device for gaming, providing game specific inputs.”
Much more, including Apple’s patent application illustrations, in the full article here.