[iphoneguy2007]

I agree. These cases, especially the new ones for the 3G, seem to be more prone to scratching. I suspect this is because manufacturers are more focused on keeping a slim form factor. Well, the thinner it is, the more flimsy it is. As a result, the sidewalls tend to move back and forth a little more, so if there is any dirt underneath, it acts more as an abrasive.