What open source project(s) are you working on?

So in the spirit of this community and not just to focus on the Reddit... issues... I thought it might be nice to get a topical conversation going in here.

Basically, what open source projects are you currently working on or are you heavily involved with?

I think it would be nice to see what projects people have on the go, get some publicity out there and otherwise talk about stuff that we should be discussing here.