I have used the PowerSupport Crystal Film on my original iPhone and left my 3G naked and it never scratched. And while I used the BSE - Bestskinsever - on my iPhone and iPhone 3G, I never put their front skin on the screen b/c it has an orange peel effect which is great for grip, but not something I wanted on my iPhone screen. I was at BestBuy the other day and saw one of the mobile guys InvisibleShield Front Only on his iPhone 4 thinking it was a static cling screen protector film. I was surprised that it had really no peel effect, though I only saw it for a moment. For anyone that uses the IS on their screen on their iPhone 4: 1. Does it affect the clarity at all, like some of the films, etc? Do you lose some of the sharpness of the iP4 retina display? 2. Since it is a wet application, how long do you need to let it dry b4 you can turn your iPhone back on. Any other comments or feedback would be great. Thanks.