Scoshe (http://www.scosche.com) has released the RAILkase for the iPhone 4 and 4S. The US$59.99 case is available in red, blue, black, pink and silver.

The RAILKase features a shock absorbent, aircraft grade, aluminum and silicon hybrid design that covers the four edges of the iPhone. A polycarbonate bridge is designed to prevent signal loss.