This is an application, so most of what today's filing tells us is certainly not set in stone, but new ideas include a "kinetic energy gathering component" within the band -- like the trickle charge feature found on watches -- to pump energy back into the device.

ENGADGET

If you need more time, you can request an additional four month extension by filing federal form 4868, Application for Automatic Extension of Time To File U.S. Individual Income Tax Return (downloads as a pdf) by June 15.

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In the filing, United States Patent Application 20100207721, Apple is asking for a patent on several methods for identifying unauthorized users of an electronic device.

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