The proposed product is simply yet another thing that *can* be done, so someone is offering to do it. And there's plenty of soft-core hobby projects; pour in any processor you want. I myself as an old person, would not call a programmable-logic CPU a "real" classic microprocessor. But other people just want to run the software, never mind how; emulators, soft-core processors, whatever. And there's other reasons. There's actually vintage-computing history, about multiple processor systems. Generally they were not well-produced, because you can't optimize a computer with two or three very different processors; you don't get enough resources for either as a result. What worked were things like the Tandy that used a Z80 for peripherals and a 68K to run some Unix-flavor OS; or processor-per-use schemes like TurboDOS/S-100 systems. Or, a Z80 on an Apple II to run CP/M and Z80 compatible programs (from Microsoft). Funny to talk about "modern microcontrollers fast enough to emulate Z80's". When IBM-AT class computers could run emulated CP/M-80 in real time at say 2-4MHz - suddenly the market for used CP/M-80 computers DROPPED. Go figure. So history may not repeat, but it certainly rhymes. Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net