On the one hand, for an idea so obvious, Apple was first for both phones and tablets -- and they were "first" very late in the game. Microsoft OEMs made tablets for a decade, but NONE of them (even the slate tablets) really compared to the iPad.
On the other, I don't see how this is a patent. It feels more like a trademark, although the design of the iPad is probably too general to trademark.
My question is: How did the auto industry resolve this? Early cars looked like horse carriages and steered like boats or trolleys. How did the development of the timeless car design patterns (sedan, coupe, wagon, van, pickup, etc) get to the present state?