Hi John,
I can also confirm the offer is legit. My theory is that Chromatone was created by a guy who is passionate about Janko keyboards and was hoping his keyboards would take off, but (as always with Janko) they never really got popular. After 30 years, maybe he is thinking of calling it quits, and now he just wants as many people to play with his keyboards as possible.
When I bought, the Revolution was out of stock, and I think it's a while-supplies-last deal. I got a CT-312 for free earlier this year, although shipping to the US was around $250. I remember being surprised that the keyboard came so fast, when just about anyone would prefer a cheaper, non-expedited shipping rate. Still, it's a great deal.
Xan