Worried about the glass back of your iPhone 4 getting smashed? If you have $13 and a few minutes, Hong Kong manufacturer CNN (Cellular Nationwide Network) can supply you with a nice looking aluminum backplate to replace the glass.
According to the original "how-to" post on Unplggd, the metal back is incredibly easy to install. You just remove the two screws on either side of the Dock Connector port, pop out the glass, slide on the metal cover and Boom! You have an attractive, custom iPhone 4. The sides are even beveled for a more comfortable using experience.
