Yes, the iPhone 4 is meant to be super strong, and able to withstand quite a beating. Keep in mind, scratch resistant is not the same as scratch proof, and the at least one review units is already showing the signs of wear. Engadget found the phone they reviewed has already managed to get scraped up a little.
Remember folks, tough is not invulnerable. It still wouldn’t kill you to invest in a case, or at least try and be careful with your brand spanking new telephone.
Not that I’m one to talk, my iPhone 3G is so scratched up, it’s barely recognizable.