I've only skimmed through the first few pages of this cause there are so many dang posts.
One thing that stands out is that so many people keep saying these mock-ups look awful and they hope it looks the same as the iPhone 4.
It sounds to me like these people are just trying to feel better about their past purchase. And they seem to be ignoring the obvious problem of such a fragile device with an antenna problem.
Also, this is the exact same thing that has happened with the iPhone 4! People were saying "oh glass on both sides is so fragile, Apple would never do that!" But look at what these people are saying now. So all these people saying that need to shut up.
Face it, whatever the fifth generation iPhone looks like and whatever it does, you will all love it. It happens time after time.
This is just a mock-up and will look different from a re-designed iPhone 5, but I think people, for whatever reason, seem to think it will look EXACTLY like that.
Personally, I don't know what will come out on the 4th. Whether or not it is a redesign, I think it will be called the iPhone 5. They wouldn't say "Here's the new A5 chip, here's the new iOS 5 operating system, here's the new iPhone 4S." That would just be stupid. The 3GS lined up the numbers, they wouldn't mess it up. So if it is the same design or a new design, it will be called the iPhone 5.
100% speculation here, but I think it will be the same form factor with a bigger screen. Look at the new iPhoto icon as an example. But we will wait and see.