Last weekend I wrote a Python binding for Mongrel's http11 parser. I will probably integrate this into eventlet.wsgi and Spawning at some point, but it's not really that much faster than eventlet.wsgi's existing pure python http parser, so I'm not in a hurry.
I decided to release the code on github in case anybody else is interested in playing around with it in the meantime. This is the first time I've used git to commit and push. So far my impression of git compared to darcs and hg is very good. git seems easy enough to use and is very fast. There's not a compelling reason to use it over hg except for the fact that pretty much everybody else in the world seems to be leaning towards git.