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I'm sure someone will come in here and call you crazy don't read so much into it etc but it's great that you stumbled upon this. I bet Apple did/does have a prototype iPhone or an iPhone design proposal that has wider screen and home button. Whether it will ever be released (or even prototyped/tested) is another story.
 
It wouldn't surprise me if the iPhone 5 actually got delayed. Didn't some inside guy, who supposedly works for Foxconn, say that there was some sort of issue with the iPhone 5 screens?
 
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