The expected look of iPhone 5!
There are many rumors about the new iPhone designs including the ones with the slide-out keyboard, the 4inch screen iPhone and the small iPhone.
A macrumor member shows how a 4'' screen may fit on the existing iPhone 4 by just extending the screen from the edges!
As well as the small iPhone using the 3.5 screen in a similar way.
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And these are other mock-ups showing an edge to edge screen!