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...)