Wow, that actually gives me more confidence because we have people doing it because they feel passionate about it. Thanks for your hard work....
I've been busy with some other small OS projects (and stuff that pays the bills) but personally feel like I need to try to carve out some time this year to do something to contribute back to Rails.....
I am a committer, and part of my job is to work on open source. Ish.
Other than that, it's everyone else's spare time, IIRC.