To say that RibCage ($35) is a break from SwitchEasy's past collection of iPod, iPhone, and iPod cases would be only half-correct: the bony styling of this new iPad case is somewhat familiar from the company's CapsuleRebel M, but the rest -- the simple, sleeve-style design, the use of faux leather, and the absence of playthrough functionality -- are all surprises given SwitchEasy's past releases. Inside the case is a hard plastic frame to protect…