Seen for the past few generations of Apple's iPads, AirCoat ($40) is back for iPad Air. The folio-style case is plastic, covered with a faux leather material in one of seven different colors. Holes along three of the four edges expose the buttons and ports, including one long opening from speaker to speaker. Lift the lid up, fold it behind, and tuck it into a tab on the back to form viewing and typing angles.