Looks like we're set to do some coworking at http://loft.bocoup.com ("355 Congress Street, a 5 minute walk from South Station") on Monday Aug 19 through Wed Aug 21.
Let me know if: a) you have a particular project and particular time you'd like to work with others on that project b) you'd like to hang out with WMF folks and have a particular time you'd like to do so ;) c) you'd like to organize something on Saturday Aug 17 at the bocoup space.
Otherwise I expect I'll be @ bocoup roughly 10:30am - 5:30pm on those three days. Come and be social, and maybe something serendipitous will happen! --scott