[quotemsg=11811324,0,125865][quotemsg=11810852,0,84484]I can't wait to see how the self-healing portion works. If anything, it will lay the ground work for phones that don't need cases to protect them from damage.[/quotemsg]
Most "self-healing" coatings have limited recovery capabilities so this won't replace your case if you are concerned about anything worse than your phone sharing a pocket with keys or change.[/quotemsg]
The old Thinkpads had a rubberized self-healing coating on the lid. I didn't learn about it until my Thinkpad was 2 years old and the lid was covered with scratches. After rubbing it for a half hour, the scratches were almost all gone. One really deep scratch was still slightly visible - that one took a couple months of occasional rubbing before it disappeared. I was impressed
[quotemsg=11811324,0,125865]If you apply enough pressure (ex.: by dropping the device on a hard and rough surface such as sidewalks), the coating can split around the impact point and form a hole. So you would probably still want a bumper to protect edges and corners.[/quotemsg]
The coating wore off one of the corners by the time the laptop was 4 years old. Otherwise, I'd say its durability is just fine for something as lightweight as a phone. I dropped the Thinkpad about a dozen times in 4 years, mostly onto non-carpeted floors. Sometimes it picked up scratches from the fall, but 15 seconds of rubbing and it was good as new. I never saw anything like a crack or split.
I was disappointed they stopped using it (at least I think they did - the last couple Thinkpads I've bought haven't had it). Its texture was really grippy too, made the laptop easy to carry by hand.