The physical hardware switch located in the top-right corner of the iPad and iPad mini has had a somewhat checkered past; while it now defaults to being a mute button, when the original iPad was first released with iOS 3.2 the button was actually used only as an orientation lock, a behaviour that remained in place until iOS 4.2 permanently changed it back to a mute function and then iOS 4.3 gave users a choice. Out of the box, the button works in…
