John, Every Saturday from 2-6pm there will be an Open Jam. Currently it's being held at 1cc (OLPC headquarters).
While the event is targeted to kids ages 11-17, everyone is welcome! Info on RSVPing is here: http://wiki.laptop.org/go/Boston_Saturday_OJ
Also, OLPC_Boston has an exciting opportunity to be involved in a pilot school program here in the area. Anything and everything that you might be interested in contributing will be needed: content creation, lesson plans, tech support, Activity building, etc, etc, etc. A new wiki page has a table where you can enter your name, etc.: http://wiki.laptop.org/go/OLPC_Boston/pilot_support
Please remember to join the OLPC_Boston mailing list. From this point on I will be using that list to send out info to the group. So if you're not on the list -- you'll miss out on all the fun! http://lists.laptop.org/listinfo/olpc_boston