Nexus 9 accessories up for pre-order on Amazon, shipping November 3

Amazon has HTC's Keyboard Folio and Magic Stand accessories for the Nexus 9 up for pre-oder, with a launch date of November 3. The keyboard accessory is available for $129.99, while the flip cover will set you back $39.99. Amazon's pricing is similar to what is being offered by Google on the Play Store.
The folio case attaches magnetically to the back of your Nexus 9, and connects via Bluetooth, with the built-in battery claimed to last for up to five months. The flip cover can be folded to prop up the tablet at two different angles, and is available in black, coral amethyst, lime stone and mint indigo color variants.