Re: I wish them well
I saw the BeOS demo too. I recall that it was heavily dependent on the Metrowerks CodeWarrior development environment, which was my favorite IDE at the time. Metrowerks started releasing inoperative updates and that was pretty much the end of the BeOS demos. I never saw one again.
This was about the same time that MacOS and Windows were highly unstable, both in APIs and reliability. I ended up switching from C++ to Java for primary development.