There's a liquor store in Washington that was still using C128s for their POS system as recently as a year or so back. They had a couple of spares stashed on the top shelf.
The Commodore 128 had two processors, a 8502 and a Z80, and could run in C128, C64 or CP/M modes. The Z80 was used in CP/M mode. It would be interesting to see which mode the software runs in. I know there is still a POS system for the Commodore 64 sold and supported.
I don't think they're still there, at least run by the same people. That store got sort of flattened by the Wa State liquor reconfiguration, where Costco and the grocery stores can now sell hard alcohol.
(FWIW, it was the one in the back of Langley Village, on Whidbey Island).
