Acme Made's Infinite Angle ($60) is a truly unique case at a point when new creative options for the iPad 2 seem to be drying up. While the faux leather folio-style design has been seen plenty of times before, what sets the case apart is how it stands up. A nylon strap fully encircles the case, using a magnetic tab to hold the front lid shut. When the front is folded behind the back, you pull on the tab to retract the strap, creating a landscape viewing…