It's how I understood things. However, without possibility to invite collaborators (to ScribTeX), there is not much use for me. That said, I used it, liked it a lot, started paying for it... just to discover that I cannot use it (in terms of, well, collaboration) anymore (so I quit paying, but with a bitter "you should have warned me when I wanted to pay, not only in the Sign Up form").
Anyway, I'm looking forward to see git stuff at ShareLaTeX.
Sorry I don't fully understand, you can invite collaborators on sharelatex into the project via the project settings area. Free accounts are capped to having 1 collaborator (1 person + yourself). Please drop me an email henry.oswald at sharelatex.com
The comment was about ScribTeX, where I cannot invite others (unless they already have accounts) but still I can (or at least - could recently) upgrade to paying plan (without any warning that ScribTeX is no longer accepting new users).
Anyway, I'm looking forward to see git stuff at ShareLaTeX.
Or writeLaTeX.