I remember seeing this on HN a few months ago! Looks pretty badass. I plan to play around with it when I get some time. I love Ruby, and have long loved the idea of a WM/desktop in Ruby. A friend of mine is diehard Xmonad user and the power of being able to write code to extend the WM is fascinating.

Also just wanted to let you know that I sent you an email. Don't feel obligated to respond or anything, just wanted to let you know because I sometimes get emails from people on HN but they go to an inbox I don't often check so I often don't see them until long after unless they tell me in a comment that they emailed me.