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"Nokia's patent for a simple, but brilliant mobile joystick has been approved. As pictured, it's a stylus that, once secured into a central socket, is converted into a gaming backbone. Here's the patent mumbo jumbo:\"A method for integrating a pointing device into a handheld device, the method comprising the steps of: rotatably mounting a ball within a socket defined by said handheld device, said ball defining an orifice for receiving a stylus, said socket being configured for generating to a processor of said handheld device electrical signals indicative of movement of said ball in response to movement of said stylus; and imparting pointing device logic to said processor for responding to said signals.\" (Easier done than said...)[Via CrunchGear]"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2007/02/22/nokia-patent-transforms-stylus-into-joystick/>