Trtl Bot has unveiled its new Kickstand 4 and Minimalist 4 cases for the iPhone 4. The Kickstand 4 features a fold out support on the back that can be placed at different angles for portrait, landscape, or camera use, while the Minimalist features a slot on the back for holding one to three ID or credit cards. In addition, both cases are made from recycled plastic and offer open access to all ports and controls. Trtl Bot’s Kickstand 4 and Minimalist…