Oh yeah, there are at least two more PC clones unemulated:
- Istra-4816 -- triple-CPU (8086 + 2x8080), could run DOS and/or CP/M (concurrently). I have some of its software but no dumps. Wiki: http://ru.wikipedia.org/wiki/%D0%98%D1%81%D1%82%D1%80%D0%B0-4816 - Neuron I9.66 -- uses Multibus instead of ISA.
Before IBM PCs, there were others:
- Iskra 226 -- said to be a clone/reimplementation of Wang 2200 - Electronika D3-28 -- likewise, of Wang 720
This hardware is rare enough my now, but software is nowhere to be found; f.e. apparently there was a port of V7 UNIX to Iskra 226.