Google has listed on the Play Store that the Nexus 9 will begin leaving their warehouse by the 5th of November. It looks like shipments are due to begin imminently with customers reporting that their Credit Cards have now been charged for the amount which was pre-authorised when they pre-ordered the tablet.
Checking with banks shows that the authorisation has now been finalised, which means that according to the Support Page for the Play store, the devices are shipping. The full wording of the support page reads :
When you purchase a device or device accessories on Google Play (Galaxy Nexus, Nexus 7, covers, chargers, etc.), you will be charged at the time your order has shipped – usually within a few days after placing your order.
So, the next step will be receiving shipping notifications and tracking numbers for the tablet. Be sure to let us know in the comments if you’ve received a notification and tracking number.