I got my iPhone4 last week and now I am looking for a case for protecting my iPhone4 from scratches and dust. My friend told me that the wood or bamboo cases are very hot lately, then I found a flip-open wood case which seems pretty good ( Vertical Flip Case+ Crystal Box for iPhone 4G ). But would it be a little heavy and not so convenient? I also found a back case sticker like this Straw Mat Skin Back Case Sticker for iPhone 4G , it looks also awesome. Which one is better and what kind of cases are you using? Or have you any other good recommendations?