Robotron A7150:

This is a weird-ass bugger, but essentially it's an East German IBM PC/XT clone that sucks ass when it comes to compatibility. It uses a uPD7220 combined with a UA880 CPU and a crapton of Z80 peripherals to emulate a CGA (it seems). Could be a good testcase for the 7220.

MESS status: completely skeletal in SVN, though I have been working on getting it to at least display something. Once the weird-ass Z80 stuff has been finished, I'll post a screenshot.