I think most people don't understand what it means that this is a design patent - it's not the same thing as a "regular" patent (a utility patent). Design patents allow a company to get an exclusive right to the form of a functional object so that a 3rd party can't make a different device with identical appearance (well, not legally at least). Almost every company that puts the time into making a distinctive shape for their devices gets one: Microsoft has one for the Xbox, George Lucas got one for Yoda etc.
Design patents are extremely narrow - you have to do your level best to copy them exactly in order to be found in infringement. Plus, they specifically cannot cover functionality - that has to be covered by a utility patent, if it's going to be protected. This design patent only protects a "portable display device" (that's the wording in the Patent itself), and only one with those specific design elements that are shown in the Patent Figures.
I'd be shocked if Apple hadn't applied for design patents for all of its devices. This really isn't an issue."
http://arstechnica.com/apple/2012/11/apple-awarded-design-pa...