One of my readers has tipped me to a website that's selling the OEM version. What I mean is that Augen don't want to carry it anymore, but the Chinese company that actually designed and produced it are still selling it. Aside form a few different lavels, it's the same ereader: case, hardware, and even the retail box.
The The Book was made by HiVision, and you can buy it on DealExtreme for under $100. I'm not suggesting you get it; it never was all that great of an ereader.