What is the tiny hole next to my camera on my iPod touch 4g for?

Charlie Mawer

New member
I recently got an iPod touch 4g for my birthday, and everything is going well with it, and I've already loaded it up with four pages of apps. I was just wondering, There is a tiny hole next to the camera, a pinprick of a hole. Anyone know what it is for/how it could be used?
 
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