Logitech has announced four new covers and cases for the iPad Air, three of which include a keyboard. FabricSkin Keyboard Folio ($150) is a thin, light water-repellent folio case with a rechargeable Bluetooth fabric keyboard. Logitech’s Ultrathin Keyboard Cover ($100) is an aluminum screen cover with a built-in Bluetooth keyboard. Logitech’s Ultrathin Keyboard Folio ($100) is similar to the keyboard cover, but in a full folio case. All…
