SwitchEasy has introduced its CapsuleRebel case for the iPhone 4. Like the company’s prior CapsuleRebel cases, the iPhone 4 version utilizes two layers—an inner ADSP layer and an external polycarbonate “UltraFrame” with an ergonomic spine structure for added grip—to provide protection for the device inside. Other features include open access to the ring/silent switch, rear camera/flash, Home button, and screen/front…