Though our eyes very nearly glazed over at the sight of what initially appeared to be "yet another iPad folio-style case," iSkin's Aura ($120) managed to surprise us with little design elements that make a bigger impact in person -- and on close inspection -- than in photos. On the outside is an intriguing combination of a colored, brushed metallic fabric with contrasting nylon materials, while the inside is lined with microfiber and a circular-patterned…