Ok.. So I had no idea that my 3G phone came with a black cloth. I guess I never looked hard enough. I was opening it up today and noticed it. I cleaned off my iPhone 4 screen and now its really clean (of course once i touch it, it will change).. So is it ok to wipe the screen with the cloths? I'm sure it is.. but afterwards, I started focusing on the feel of the screen. I was thinking that when I first opened the phone.. the screen was really smooth and my fingers would slide without resistance.. now I have myself thinking that after wiping it off.. its stickier and gives resistance. I probably need to just rest. haha.