iOS 4.3 Beta Brings Software Option for Rotation Lock or Mute on iPad
One of the more controversial changes made with the release of iOS 4.2 late last year was a change in the functionality of the switch on the side of the iPad, moving it from a screen rotation lock to a mute switch as seen on the iPhone. Appl...
http://www.macrumors.com/2011/01/12/ios-4-3-beta-brings-software-option-for-rotation-lock-or-mute-on-ipad/