I take my SP3 on the road with me each and every day, and work inside peoples damaged homes, so occasionally it can get a wee bit scratched/nixed. I already have a matte-screen protector for the front, but my baby's arse is still exposed to the harmful elements! I had to do something... I was considering getting a shell case, however I ruled that out after realizing it would increase the weight, make it more cumbersome, and I'd have to wrestle with detaching it each and every day whilst putting it in my dockstation. So, I had some old screen protectors laying around, and I decided to custom-cut one to see if it'd stick on the rear. To my surprise, it adhered perfectly, and is a pretty good fit too, sans the sides. Perhaps one day I'll purchase one that fits perfectly. So, if anyone is looking for a solution, there u have it, cheap and effective, and provides basic protection.