Just back from work and catching up on email, spotted this on the mailing-list, responding here instead:
The approach could potentially be applicable for RiscOS, or for Cedric’s
HoG project [2],
The idea of running Be/Haiku in a virtual machine is something we toyed with a little in the past. During the discussion with my fellow TTS folks back at the time, which I think was about running Haiku in VirtualBox in Linux (instead of Genode as discussed here), we had not pursued it. The reason was, it did not solve the instability problems we had, it only helped alleviate them a bit with a faster reboot after a kernel crash (assuming VB reboots faster than real-hardware, and we could detect the Haiku crash and act on it).
Edit : outside of our narrow use-case though, others might be attracted by this intriguing perspective