I wouldn't mind getting a bumper, but I hate that the bumper doesn't cover up the back of the phone and leaves the back exposed to scratches, cracking and other damage. I also think the white iPhone looks hideous from the front, but gorgeous from behind, especially when it has a black bumper on it. http://www.engadget.com/2010/06/27/white-iphone-4-early-diy-edition-with-a-touch-of-black/ "Replacing the back cover is hardly a challenge -- just remove the two screws at the bottom and then slide the cover up." So I plan to use that same iPhone 4 OEM parts source engadget used to get the white backplate. And if the back ever gets cracked (or I need to return it to Apple for support), I can always put back the original black backplate on. All the parts are only 380 yen = $56 dollars. Since all I want to order is the back plate, it should be considerably cheaper than $56. Any suggestions/recommendations/problems with doing this? Will it void the warranty? Does apple even have anyway to find out if you did this considering how easy it is to slide the back plate off and put it back on?