Here they are: the first official iPhone 4 cases to arrive for photos and testing, not surprisingly two weeks ahead of the actual release of the iPhone 4 in stores. Developed by the same people behind Hard Candy Cases, Gumdrop Cases' new Gumdrop Skin ($30) and Moto Skin ($30) each use grippy textures to differentiate themselves from what will doubtlessly be a huge wave of otherwise similar rubber skins for the new iPhone. Gumdrop Skin is sold in four…
