Yes, we talked about this at LinuxWorld in San Francisco in August and many have talked about it in the past.
It just requires someone to take a lead in doing it.
Collaboraid has put stuff together in the past and IIRC we even talked about using that as a base for some generic OpenACS brochures last April in Copenhagen.
This would be a great place for those who aren't directly involved hacking project code to step in and help out, just as Ben Koot's doing with his OpenACS demo site.