Re: The tiki 7 it will include collaborative editor?
Tiki7 is due to be released fairly soon and does not include the feature. There have been discussions around such features, but there are no precise plans for the moment. They might materialize for 8, or not.
Using file galleries and WebDav, you can use Tiki as your shared file repository and use your desktop tools to edit the files and share them instantly. You can also store the different revisions of the files by enabling revision history on file galleries.