I seen that most interesting ipad mini ad on tv - for some strange reason we forgot to forward through the comercials when watching a show from dvr. That ad shows a ipad opening and closing books probably in ibooks, not sure never seen ibooks before. And then flipping a page back and forth. At the end it said ipad mini. No voice no nothing - afterwards my wife looks at me and tells mehow it is the most stupid commercial she ever seen. I just shrugged and said: Well it is an ipad, it has that nice new page-flipping feature, I don't get the ad either.
So seeing how that was the only part of the comercial, I can see why apple tries to "protect" their "investment". I don't see the greatness in that page-turning, but I am worried about the not clear at all patent - it is a setup to sue.
Someone please file a patent for page-turning with variable page-angle, except a few degrees around the apple angle - and licence it out for free, except to apple.