So you're directly installing DOS on the device and not using emulation?
Correct. Plus the required drivers in config.sys, and using a SD card as the C: drive, all in a slimeline, silent mini-itx case. I've added a text gui (think Curses) to easily select games and apps. It's not done yet, but I'll probably knock up a webpage all about it at some point.
These boards still pop-up from time to time on ebay, and are way cheaper than a modern ad-lib clone card.