Based heavily on last year’s Naked Case, which was in turn based on Artwizz’s widely licensed SeeJacket Crystal, the Naked Case for iPhone 3G is a clear hard plastic shell with integrated thin plastic touchscreen protection. The hook here is that the case requires no separate screen film in order to cover the touchscreen; you just snap the two-piece case together, and most of the iPhone is covered. Case-Mate’s major advantage over…