There is a $499 a month enterprise subscription hidden deep within the account page... ;) but what do you mean exactly? multiple accounts / live sharing sessions? Tied to an org's codebase?
If html is a markup language and mardown a ... mardown language, then org is all of this and much more.
I wish there was an org-mode for everything non-textual, as org-mode solves the textual part of my life quite well.
