I want to know if I should buy a case for my iPhone 4 just to prevent it from scratches. Now I don't intend to throw it on the floor and slide it around with my foot on it but with my 3G laying it down on a table every now and then sliding it a little (by accident) caused very minor scratches on the back which in fact were really only noticeable by the shiny Apple logo. I really don't want to have to buy a case and I like the fact that I can actually feel the $300 I paid for in the device. So question is, do I buy a bumper for it or is the new glass scratch resistant enough to use naked? Oh and I don't drop my phone, and the Antenna issue does not affect me.