Incase has teamed with designer Marc Jacobs on a new selection of cases for the iPhone 4 and iPhone 4S. Based on the company’s Snap Case, the Marc by Marc Jacobs series features four designs—Wild at Heart, Mademoiselle Danger, Stardust Logo, and Hot Dot—in a variety of colors; each case offers full access to all ports, controls, and cameras. Incase’s Marc by Marc Jacobs Snap Cases for the iPhone 4 and iPhone 4S are available…