RE: Making $s

["Brent Fulgham" <brent.fulgham@xpsystems.com>]

> Will Clinger started selling MacScheme in 1987 or 1988. It 
> sold quite a few
> copies for little money, and it sold for Mac only. 
> 
> Kent Dybvig has been selling Chez Scheme for some 15 years, 
> and apparently
> quite a few copy. If I recall it correctly, a Chez license 
> costs $5,000 for
> industrial clients, $2,500 for educational site licenses. My 
> guess is that
> Kent sold a couple of hundred of these licenses. 
> 
> Marc Feeley sells Gambit Scheme to industrial clients. 
> Educational clients
>

While these are for sales of Scheme implementations, I am guessing
that Noel was asking about software written in Scheme that is in
use for real-world (i.e., paying) clients.

Your web page mentions something about a credit card processer
I think.  Are they more details (or other examples)?

-Brent