Watching that video, the first thought I have is "So much engineering and I still need to buy a phone case with my new phone?"

I'm guessing phone cases are still pretty much required if you drop your phone once or twice a month onto cement/asphalt/marble/etc from pocket height.

I would be really curious to hear the internal debate at Apple wrt design tradeoffs + durability. E.g. how much of the iPhone design is only possible because Apple is assuming the average person will have a case on their phone.

I wouldn't be surprised if the typical consumer would be more impressed by "No Case Required iPhone" compared to "Skinniest and lightest iPhone yet!".