Scosche has announced that it is now shipping its Railkase for the iPhone 4 and iPhone 4S. Originally debuted at the 2012 International CES, the Railkase features a silicone inner layer for shock absorption and an anodized aluminum outer rail to guard against blunt force. The outer rail features a stainless steel quick release latch, so it requires no tools to install or remove, and the case also offers push-through coverage for the volume, Home,…