Just decided to go naked right now. I had the 'Scocshe' bumper and took it off and would you believe it, I like it naked instead. Oh, and no scratches from the bumper nor the front and black glass (happened to have screen protectors installed from day one-hehe, not completely naked..shhh). I also like the 'cold' feel of the steel bezel when it's not warm. Makes the iPhone 4 feel high-techy for some strange reason. Not sure if I'll put the bumper on but at least I have it when I need it.