I was doing a bit of thinking over getting the PRS-600, but the issue of good physical protection for the Reader came up, given my previous misadventure with a broken screen (out of nowhere!) in my PRS-505.
I imagine that a touch screen of is possibly more fragile than the regular one, so: ignoring the dreadful possibility of a faulty screen, where should one better put the padding part of a protection? Is the front-and-back approach the best one? And, for the matter: padded, rigid (like the regular cover for the Cybook Gen3, if you're familiar with the item) or both of them for security?

for your help!