Okay, after a few months with my Lumia 920, I still love the phone, but the whole screen thing has been debunked. I was one who believed the whole youtube knife stabbing and all. I did the same thing to my phone, and it seemed to have worked. There is something about the screen that when you clean it after you scratch it, it seems that the scratches get filled in and are not noticeable, but they are still there. When the screen is dirty and smudged, you DO notice the scratches!! I scratched mine with forks, knives, keys, and if you use a cleaner, the scratches appear to be gone, they are still there. I got so annoyed at how my screened looked, I sent it back for a replacement. I still don't believe that I need a screen protector, I just won't be stabbing it with a knife anymore!!! lol