Andrew Mayne has explained some of the illusions behind the iPad, iPhone 3G and iPhone 4 designs. Very clever stuff and it makes a lot of sense.
If you pick up an iPad and look at it from the side you’ll notice that it starts out thin at the edges and gradually gets thicker. At its thickest point its almost twice as thick as its thinnest section. The iPhone 3G used this technique as well.
Magicians have been using this method for over a hundred years to hide their assistants inside large tables and props on stage. Used properly under the right lighting conditions, the eye notices the thin edge and not the thickest part.
