Yet more detail has emerged about the forthcoming iPhone 5, thanks to a video on ETrade Supply that closely examines the aluminum back plate. The plate is similar to the plate revealed in photos that made the rounds last week, seeming to provide confirmation that this is the real deal. One interesting feature is the "unibody" construction—a single plate forming both the back and the edges of the phone.The plate suggests that the new phone will be thinner and taller.