The "probably won't explode" feature is great as well, but you sort of expected that to be included with all smartphones.
On the other hand, the glass back idea that's catchy lately, despite Apple having dumped that years ago, is one of the stupidest things ever. I can see the designer meeting on that: "Hey, I have an idea... let's take the part of the phone that always breaks and make the whole phone that way! That'll get us so many more sales, and unlike the exploding battery trick, I think the press will be on our side!"
I actually prefer a phone designed for the way phones are actually used. If you need a case for your phone, you don't have one of those.