You know, for people who say, "It is glass, what do you expect?"
Well, I expect that for a small portable object that will easily get dropped they use materials that can at least take some abuse (my old iphone got dropped on concrete and other hard surfaces several times and it still works and hte screen is in perfect condition).
While it's nifty that the phone has glass front and back (and probably more environmental than plastic), if they can't make it so that it can't take a few drops, they shouldn't use glass for almost all the case. Yeah, plastic scratches and maybe cracks, but that's still more usable than a phone with a very shattered glass back (and/or front. It seems plastic on the back of my iphone tends to take the impact better and keep my glass from breaking. Or, the glass they uesd on the old iphones takes impact better!).
Plus, they advertised it implying that it was tough. Meaning they led people to believe this glass could take drops (to probably alleviate people like me who were like, what, you want to make it made of all material that does not take drops well? That sounds like a bad idea!). Shoot, I fell for the hype hoping maybe they found glass that was as tough as using plastic for the shell.
So, yeah, I do think people have a gripe when the phone falls once and it shatters. They shouldn't make the phone out of it if hte material can't even handle a few drops. I'm not saying that it should be abused, but get realistic. It's a small phone that people carry in their hands and move around a lot. there is a high chance it will get dropped at least once (if not a few times) in its life.