I'd like to approach the "Unnamed Movement" idea from a slightly different perspective.
What we really have emergent is a series of related movements, many of which are nested inside of each other.
At the highest and most general level is the Free Culture Movement, which is a real and active movement for sharing-minded copyright and IP innovations in all forms.
Below that, there is a division between the artistic side (Remix Art Movement) and the factual side (Open Knowledge Movement).
The Open Knowledge Movement is itself divided between the side dominated by professional scholars (Open Access Movement) and the side dominated by info-hobbyists (Wiki Knowledge Movement or New Encyclopedist Movement or "Unnamed Movement" or whatever).
(Of course, this doesn't mean that experts aren't deeply involved with Wikimedia-like sites, indeed they play a very important role, just more of a supporting than a dominating one.)
It is only I think on the level of the last mentioned info-hobbyist movement (of whatever title) that Wikimedia can seem to be the clear "industry leader" and potential movement-definer.
Thanks, Richard (User:Pharos)