The back side is just dirty, not really smudges, is it? I can't seem to find any scratch on the back side just yet with mine.
Is it safe to assume that this may be an issue with the coating layer, and not the glass itself? Material expert please chime in your thoughts. Looks like the scratches are mostly produced by softer materials, like plastic, or fiber.
Expressing anger and attacks won't do us any good here, people. I for one claim some responsibility on my part by — according to some of you — not babying it enough. But it still does not explain how, or why my previous iPhones were pretty much scratch-free after months and years of 'abuse' without every putting a single screen protector.
I get why some of you chose to put screen protectors. Please try and understand too that there are those who prefer to use their phones without.
ps. Have you seen this? Painful to watch, but no worse than JerryRig's :-) https://www.youtube.com/watch?v=K0VWwY6MR0k