iPad OS 4.2 'Orientation Lock' to 'Mute Switch' Change Permanent
One of the controversial changes in the upcoming iPad OS 4.2 was the change in functionality of the iPad's Orientation locking switch to a Mute switch....the physical switch on the iPad's side for locking the screen orientati...
http://www.macrumors.com/2010/10/24/ipad-os-4-2-orientation-lock-to-mute-switch-change-permanent/