1a) I believe that faulty QC is the root of the problem. Perhaps the phones are held by robotic clamps during the trip near the end of the assembly line, marking / chipping the coating.
2a) It has not been established as to whether it's defective anodizing or not. I did some research & found a shop that anodizes parts. They looked at my phone, & with my permission they tested an area to determine if the coating was sub standard. According to their test there was nothing wrong. They said the edges are especially vulnerable since the aluminum that's being used is rather soft.
3a) You have no data to support this claim.
At the end of the day, I don't care what's wrong. The fact is we paid Apple & it's engineers to deliver a fresh new phone to us. Period.
Toys R Us quality doesn't cut it, this is Apple we're talking about. They can do better, but also know just what they can get away with. This is simply not acceptable.
It's One Big Apple Failure.
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I've gone back to my pristine, Google Maps equipped 4S. I appreciate this trouble free model more than ever.