In April there will be a Selenium Conference in San Francisco April 4-6 -- as I work at Sauce Labs I will be attending (the plans for the monday night party sound really awesome so far). I will most likely be hacking on Windmill there. I get the feeling that the watir people will be there as well, so it should have a very much "test automation" vibe to it.
I'm considering submitting something, the deadline is friday.
Let me know if you plan to attend so that we can raise a glass.