Reality check
While you gotta love the irony here with the central concept of "Think Different", I don't see that Apple did anything wrong, even hiring the same team to create a very similar concept. Without OK Go in it. None of the optical illusions are unique, have been used in modern art for some time, and even in commercials. There's one particular artist I've seen working with photography whose work uses these illusions particularly well.
There's a big difference between being inspired by, or using the concept of, and 'stealing' from.
Art has always from its very beginnings been based on that of artists coming before; if the invention of Perspective was Copyrighted and Patented, locked away for one particular art studio to use, what would become of much of Renaissance art? Michaelangelo could patent all his knowledge of anatomy and its artistic representations, leaving every one else to produce Icons the old unrealistic way.
There is very little truly original art, most is derivative in some fashion, borrowing and inspired by what came before, whether they realise it or not.
So let's get off our high horses and just enjoy the irony of "Thinking Different".