My Nokia N8 screen is very scuffed up, mainly because I usually keep it face down because of the back camera module doesn't allow it to sit level. I don't think Gorilla Glass is that great of glass, because I have seen too many shattered screens claiming to have GG. I have one huge scratch on the screen from dropping it from my hand to the desk (about 0.25 M) and have numerous other smaller scratches from not using a case. I have never seen the GG crack like the 800 in the picture, but as it was pointed out, curved glass presents awkward angles at which the glass is vulnerable. I hate Invisible Shields, mainly because they never sit perfectly, and the adhesive, after several months, start to turn color around the edges. I definitely don't want to otterbox the Lumia 900, so I may settle for invisible shield. I will still lay it face down, because I can deal with a minor screen scratch, but camera lens scratches are a big no-no.