Apple has filed a patent potentially indicating that audio recording capabilities may be coming to the iPod and iPhone. The patent posits an equally intriguing ability: passing external sounds through the headphones instead of audio from the device. In other words, a user could flick a switch that would shut off any music or any other audio, and in...

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	www.macnn.com/articles/07/08/09/ipod.iphone.audio.patent/