The Nexus 9 has been shipping for a few weeks already. If you got yours and you want to protect it in style without splurging for the expensive Keyboard Folio, the official Magic Cover has just showed up in stock on the Play Store. Until now, the cover was available for pre-order on Amazon and only the coral amethyst variation was being sold on the HTC website. The Play Store shows all 4 colour options in stock, so you can finally pick the one you like best.
The Magic Cover carries an origami-inspired design, with magnets that help attach it to the front or the back of your tablet, depending on whether or not you're actively using it. These magnets also act as smart triggers for waking the screen or the camera (you just open the flap that covers the sensor). There are various ways to fold it as a stand, resulting in two different angles for either watching or typing.
The Magic Cover costs $39 and will ship to you in 1 to 2 business days in either black, coral amethyst, lime stone, or mint indigo.