So..right when I bought my iPhone 4 (like many of others) I purchased an iPhone case (iFrogz) then I couldn't stand the bulkyness of it. Now I've been using the white bumper for the 14th day which is now of course the last day of return. I took off my bumper last night to clean it with a micro fiber cloth and noticed a decent size scratch on the bottom right silver where I also saw a piece of dust in the bumper so cleaned it all out, then I noticed little white dots that I can't tell if are a scratch or not (not actually on the screen) but they are a long the edge where the bumper meets. So I can't tell if keeping my bumper on my iPhone 4 will actually be okay considering the amount of dust that I've already noticed scratching it..should I bring back for a different case or just go naked? I just don't know any other good cases that are tightly fitted to prevent dust from scratching the phone..dots/scratches appear to only be on front, not back of phone. Also..could those dots be a factory defect??