What looks at first like a typical -- though unusually thick -- leather folio for the iPad turns out to be a somewhat more interesting design: US+U's Swivel Pro ($60) unfolds into three sections, one with a spot for papers, the center an iPad holder, and the last with a hand strap, folding backwards together to become a case with the ability to hold the iPad on your hand. The novelty here is the strap's 360-degree rotation, which enables you to hold…
