I'm currently reading all your old posts on factor. It's so sad that it seems almost dead, it's incredibly good and mind bending. Have you lost interest for this language ?
Factor is still maintained and there is activity in the mailing list. I still use it. Recently I restored from backup an old project of mine that is written in factor, http://tinyvid.tv. It was fun hacking on it again - reminded me of what a great language it is.