Having pages separated into multiple wiki's for the different functional areas of the site is broken from a usability point of view. It makes it extremely tedious to find information that you know is there, and likely impossible to find stuff that might be there. So I'm posting a new bug as per perlDreamer's comments in http://www.webgui.org/use/bugs/tracker/10584 This was also mentioned in http://www.webgui.org/design/forum/forum/wiki-in-new-design/
If I have to make it a feature request I will, but IMHO, it's really a bug.