Don’t turn that page, it’s patented
Apple’s recent work on iOS has been using as much references to “natural” elements as possible, making the digital as physical as possible. Doing how they do, they have been protecting their work pretty extensively. They have now managed to patent the turning of a page on a digital device. So now Apple owns the page turn. You know, as when you turn a page with your hand. An “interface” that has been around for hundreds of years in physical form.