Thats OK, toot away! But I'll toot my own as well then :) http://github.com/draegtun/builder

Mine (in perl) is more akin to Ruby's Builder by Jim Weirich (http://builder.rubyforge.org/) than out and out HTML builder.

BTW, other HTML builders have been mentioned on HN before: http://news.ycombinator.com/item?id=1518096