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Double-tapping the Home button on the iPhone (from within any application) will open the Phone application. On the iPod touch, it will open a pop-up control for music playback. When the iPhone and iPod touch are locked, double-tapping the Home button will bring up the music playback control; double-tapping it a second time will close the control.

Get the camera removed

By Anonymous (not verified)

If you work at a secure facility that prohibits the use of cameras, you can get the camera removed from your iPhone. A service called iResQ (iresq.com) will send you a preaddressed shipping box and will return your iPhone with the camera removed for about $100. This will void your warranty.