Everyone gets the choice between the white or black version of the Nexus 9, and the choice of either 16 or 32GB of storage, the only difference is in the price. In the US, the Nexus 9 will cost you $399 for the 16GB model, or $479 for the 32GB model. In France and Germany, the options will cost you €399 or €489 respectively. The French version of Amazon also lists the 32GB LTE model for €589 only in black, and supposedly shipping the same day as the Wi-Fi only, but we'll have to wait and see if that's a mistake or not.
We checked other Amazon sites for the UK, Canada, Spain, and Japan, but didn't see the Nexus 9 listed anywhere else. No matter what you choose, the ship date stays the same. Amazon may not care about when Google said to start preorders, but Amazon is listing the same ship date that Google stated of November 3rd.