In the show, I mention that leaving Mark Williams Company was "a

story for another time", but the short answer is that Linux crushed

them. Coherent Unix had to make a choice to compete with either Windows,

SCO Unix, or Linux, and had enough budget to add either X Windows or

TCP/IP networking. They chose X11, and IMO that killed any chance of

Coherent Unix being useful in a world of Linux and FreeBSD.