"When you're a carpenter making a beautiful chest of drawers, you're not going to use a piece of plywood on the back, even though it faces the wall and nobody will ever see it. You'll know it's there, so you're going to use a beautiful piece of wood on the back. For you to sleep well at night, the aesthetic, the quality, has to be carried all the way through." -Steve Jobs The geeks at <a href="http://www.ifixit.com/">iFixit</a>, a Web site that provides free repair manuals and advice forums, are usually one of the first to tear apart a new gadget. It didn't take them long to take apart the iPhone 4S and peek at the internal design that few people ever see.