Contestant on CORONET.
Thank you for your vote :)
Please elaborate on the completeness score.
I hope that someday it'll be an API. Some kind of alternative for Google Docs, but with one (I think) big advantage - possibility to edit real web pages - not documents separated from website, but parts of real websites. For now we were only focused on preparing proof of concept that real time collaboration is possible with WYSIWYG editor based on contenteditable.