The option to buy it new is still missing from the us amazon store this morning. If it does not go back up on Monday, I will assume the worst. The DX is also now absent from the kindle family charts, which is a bad sign.
I have been waiting for an e-ink device with an 8.5x11 inch screen for many years. The DX was as close as we got, but I was hesitant, as I was holding out for something larger.
At this point it looks like such a device will not be produced. I may have to end up using an lcd device.