Phyzome threw together a mailing list in May of the people who came to the East Coast meetup in DC, to discuss a potential US Wikimedia chapter. If you are interested in the subject, don't worry, you haven't missed anything; there have only been one or two posts to the list so far.

There is now a public mailing list, WikimediaUS-l, for these discussions. You can sign up here: http://mail.wikipedia.org/mailman/listinfo/wikimediaus-l

Cheers, SJ