Here's a new blog about getting funded to do an international event
Keep in mind that Emily said that WM DC is planning a diversity conference. That's not the same as a "gender gap meetup" type of thing... but perhaps there is an opportunity to connect to that.
For example: we hosted AdaCamp DC in the days prior to Wikimania (during the hack-a-thon, and some participants at AdaCamp went back and forth...) and it was fabulous.
So perhaps there is an opportunity to do a gender gap activism/wiki hack type of event prior to that.