iSkin is growing its iPad mini case line with the releases of Aura Folio and Vibes Folio ($50). The two cases are shaped the same way and have the same features, differing only in their outside designs. Each has a hard plastic shell to hold your tablet, with flat covers around it. Aura Folio is covered in nylon that's designed to look like brushed aluminum, while Vibes Folio has a raised swirl pattern. They can both hold the iPad mini in multiple…
