Here' the leake photos of iPhone 5. Parts of the iPhone 5 picture has been leaked online. The leaked images show that the next iPhone will retain the physical home button and will have a metal back with a smaller dock. The photos also suggest that the next-generation iPhone will have the same width, but has a taller screen.
From Tech blog 9to5Mac, "From a production standpoint, it appears that the metal antenna band is molded into the metal backplates. We assume this is Apple's way of creating a unibody enclosure for mobile devices. Apple introduced unibody notebooks in late 2008, and the purpose of the unibody is to allow Apple to produce thinner and lighter, yet stronger, devices. Now that most of the phone's external elements are one piece, Apple is likely able to squeeze more into the iPhone internally. Apple needs all the space they can get with their plans of producing LTE smartphones with proper battery life."
There are many differences compared to the iPhone 4S. Among them is the case in the rear-redesigned, camera modules that look bigger, speakers and microfon have different shapes, the new connector and 3.5 mm audio jack is moved to the bottom, like the iPod Touch. image by BGR