A couple of nits ...
"OpenAcs is an international community of developers who develop and
maintain a toolkit for building websites."
No, OpenACS is a piece of software, you're describing our community/project. Let's not confuse newcomers with the first thing they read about us, our mission statement! :)
Joel ... good thoughts other than the fact that I hate the word "powerful" in the software context, so overused that it's become a mere noise word!
Jun ... I stand corrected regarding Talli! :)
I won't be able to follow this conversation regularly since I'm on the road but do like the direction it is taking.