Just to make it clear: I did not post about these things here in order to suggest that OpenACS should include them in its list of packages. Only that the packages exist and that someone may take some useful ideas from these packages and incorporated them to the toolkit. But, let us have the discussion about these when I'm back to Cyprus if you do not mind.
As far as xotcl goes, xotcl is much more tcl than any other package that we are using. It is an *enhanced* tcl that empowers the procedural tcl. Again, I did not post to provoke the discussion now. Only to bring people up to date about my work. I would appreciate if we could have the discussion when I'm back home and settled.