As similar replacement would be nanoc:
http://nanoc.stoneship.org/
https://github.com/ddfreyne/nanoc
Denis Defreyne and I have corresponded on and off regarding static site generation. Webby is deeply inspired by nanoc. Give it a look and see if it meets your needs.
Blessings,
TwP
> Thanks, that's good to know. I'll checkout nanoc then.
>
> Too bad though, our site is already based on webby, and it is great, but I
> guess we'll have to migrate to nanoc at some point.
>
It's never easy admitting when you no longer have time to work on an open source project. Webby was great for a while ... in some ways it renewed the spark in the whole Ruby "static website" tools area.
Blessings,
TwP
nanoc seems half as popular as Jekyll according to the Ruby-Toolbox, but it's intent is more like webby:http://starrhorne.com/posts/howto_build_a_blog_with_nanoc/