We are planning to look at more of this, the site is just a step along the way. You can also check out our API (http://openstates.org/api/) you can play with the data yourself.
Hi, I'm actually the lead dev (Paul works with me, but is a recent addition to the project). Glad to see the interest on here.
Our funding is down on that page under 2011, it comes from the Rita Allen foundation. We do get paid a fair rate (I'd say, granted it isn't what we could be making in some places but it isn't that far off, plus I get to write open source code all day and do something I care about.)
you might be interested in the underlying scraper project we run @ http://openstates.sunlightlabs.com - this is the first step to getting all of the data so it can be used by OpenGovernment and other sites