From a cosmetic standpoint, the new Fuze is an improvement on its predecessor; it’s obvious that iSkin has found ways to make its prior components all look better than they did in the prior generation. But those changes are basically skin deep, and saddled with other issues. Fuze’s screen protector initially appears to be a major improvement on the previous one, a piece of integrated plastic rather than film. Unfortunately, iSkin—intentionally,…