Composed of hard, glossy-finished plastic, Capsule separates at a seam that parallels the bottom edge of the iPhone’s or iPod’s screen. On the iPhone 4, an opening roughly double the diameter of the headphone port allows access for almost any plug size or shape; the iPod touch 4G version has a unified opening spread across its bottom. With each case in place, we were able to connect the Apple Dock Connector to USB cable, as well as Universal…