We will shortly be launching a new version of the openacs.org site. As part of that we've talked about creating a repository for user-contributed packages that, for some reason or another, aren't going to be part of our OpenACS-supported suite of packages.
So I think this will probably be the best place for your UNIDO Content system. Even though it doesn't use the content repository there's always value in having more examples of how people are tackling issues like content management, so I'm sure folks will find it interesting.
It may be a few weeks or a couple of months before we're ready with a user contributed repository on the new site. We'll probably want to have some public discussion of organizational issues, i.e. will we want to define categories (like "content management")? etc ...
