Not just sliders, all tight fitting hard cases that are direct plastic on glass. My iPhone 4 now has a small chip on the back glass from a piece of dirt or something getting stuck in my otterbox defender. It had been under the felt part. I recommend getting a candy shell or somthing similar that has a soft material in contact with your phone.hopefull convert AVI to ISO can solve itThe iPhone still hasn't been surpassed! I'll give you any 2 Android phones against the sales if the one iPhone! You'd still suck ACRONYM title=ass>***/ACRONYM>! There is no iPhone competitor! Android added to 467754 different 5 cent phones by 456765 carrirers is not the same as a phone vs phone comparison! Now… Pick one Android phone and show me numbers that say that it beat the iPhone in sales! I challenge u and all the people who make stupid statements about Android vs iPhone! Pick one phone and do your comparison! Would you put Micheal Jordan against the Lakers or against Kobe? Would you say that Ford outsells the 2011 Porsche Turbo or Ford oustells Porsche? Let's be real the entire argument of Android vs iPhone is a ACRONYM title=Bitches>*******/ACRONYM> Way Out! I'll even give you an unreleased Android like the Incredible 2 or the Bionic! Start counting on the day it drops and I won't even laugh when you lose!