The conclusion of the manifesto is actually (in its current version, which is still draft) an invitation:
The Mozilla Foundation invites all others who support the principles of the Mozilla Manifesto to join with us, and to find new ways to make this vision of the Internet a reality.
This loops back to the fact that we are a community, that we are open for others to join us in what is probably the most exciting challenge of this decade...
Since I'll be away, comments are closed on my blog. But readers and Mozilla contributors are invited to discuss the Mozilla Manifesto on the Mozilla.Governance mailing list / newsgroup.