Not sure if anyone has posted this, but with all the gripes about the lens being exposed I thought I'd comment. I was cleaning mine today and noticed that the metal ring extends ever so slightly beyond the glass itself, so even if you lay it so the lens is perfectly parallel to something, the ring will touch before the glass. Granted, the clearance isn't much, so a grain of sand or salt could still reach it, but it is recessed.


But obviously you'd be lucky to get even one replacement lens cover to stick after most of the adhesive came off with the first one... I'm sure they could have figured out something with little Philips head screws... geez 
