There have been a few disjoint discussions about US chapter formation recently.  Austin mentioned this in a foundation-l thread last month; Alex756 yesterday mentioned the idea of a regional chapter, and I note he had started a page about "wikimedia new york", reminding me that there is a [dormant] mailing list for such discussions.  Those who are interested, please sign up for the mailing list, and use Meta, so the discussions do not get too fragmented. 

Outstanding issues : Does it make sense to have regional chapters?  How could a national chapter work in a large country with  distributed clusters of users?  What are the legal issues involved?  (Alex can help here).  What are possible projects to take on?

http://mail.wikipedia.org/mailman/listinfo/wikimediaus-l
http://meta.wikimedia.org/wiki/Wikimedia_United_States_of_America
http://meta.wikimedia.org/wiki/Wikimedia_New_York

Cheers,
   SJ

[cc:ing others who have recently brought up related ideas but aren't yet on that list.]