I worked as a Rails dev at the DNC in 2010-2011. I pushed for open-sourcing our fully-featured voter reg. Rails app back then, but didn't find much support for the idea. The political world is pretty wary of "giving code away" because the opposition will use it, etc. So, progress?
Hopefully they'll continue working on this tool and make it something worth using and contributing to. I've tried to convince several political orgs. I worked for in the past to do this, but so far none have bitten.