Apple has issued a patent for a hold switch that is automatically triggered by ambient light. In other words, if a device is put into a dark space, it will be triggered to enter "hold" mode. Possible applications for this patent include an iPhone that automatically turns off the ringer in a dark movie theater, or (more likely) an iPod that automati...

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	www.macnn.com/articles/07/07/05/light.sensitive.hold/