The Open Mobile Consortium (of which UW's CommCare and ODK are a part) will be having a hackathon at the MIT Media Lab on July 1st and 2nd. The goal of the two days is to have some fun programming together to extend one or more open source tools supported by the Open Mobile Consortium or other tools that want to integrate.
Details and (free) registration can be found here: http://www.open-mobile.org/news/join-us-next-omc-technical-meeting-july-1-and-2-mitcambridge-usa
