The new iPhone looks pretty much like the old iPhone. Sure, it's a bit
taller, allowing for a display that has one extra row of icons on the
Home screen. And instead of the glass that you find on the back of
today's iPhone, the new model's posterior is composed mainly of some
kind of metal — either stainless steel or aluminum that has been
polished and, in the case of the black version, treated by a chemical
process to turn it a dark, matte gray. (On the white model, the metal on
the back looks untreated.)
The other difference is the dock connector — instead of the inch-wide
plug that Apple has placed on almost every iPod, iPhone and iPad since
2003, the new iPhone will inaugurate a new, tiny plug that we'll
presumably find on all of Apple's other devices, too. Finally, and
strangely, the headphone jack is now on the bottom of the phone, rather
than the top.
But that's it.