That's exactly the problem that got Apple into this mess, if no bumper were needed there would be no problem. I'm sure most quality control issues can be over looked but when a cell PHONE fails at doing what it was meant to do and thats make calls then the manufacturer (Apple) has a big nightmare to deal with.
True, but if Apple included that bumper (it could have been a black bumper, allowing them to continue selling the other colors at $29 a pop), with every iPhone 4 they would have avoided this mess entirely IMO. You would have had a small subset complaining I'm sure, but by including it in the package (and by extention, ensuring it was compatible with docking stations and all other Apple-produced peripheries) we would clearly have a slam-dunk top-notch smartphone.