VF-31J still available at AmiAmi.... though I think that is possibly due to a site glitch.
I noticed that, when using either Chrome or Opera browsers, when I tried checking out my order, the browser would bug out (Chrome would give me that "Oh Snap" error message, for example) repeatedly and never let me finish checking out the order.
However, I was successfully able to place an order using Firefox.
Not sure if this site/browser issue is happening to other people on AmiAmi, but if it is, that would explain why AmiAmi's pre-order is still open.