Ebuyer brought this to my attention: http://www.techradar.com/news/phone-...s-back-1139511
Seems like a fairly interesting concept, move a few weights about in the phone to make it land on its back. Of course, it's only really useful if the back is made of a decent shock-absorbing material, and TBH they could probably manage something about as useful by having a tough case protrude past the screen to prevent it touching anything, much like a lot of phone cases do. But that might might harm the aesthetics of the phone, and we couldn't have that could we?