I did this same thing about a year ago (http://news.ycombinator.com/item?id=1521308) with jabberwacky. I wrapped the jabberwacky calls in a ruby script and got two bots talking together.

You can read more about it here: http://www.thepursuitofquality.com/post/1/the-pursuit-of-art...

Or if you're just interested in the code: https://github.com/gavingmiller/joan-wrapper

</shameless but relevant plug>