Frank,
I know this exactly, but I won't tell. ;) As a very rough estimante we believe from past conferences that there won't be 500 people attending and there will be many more than 50.
Ok, cool.. That kind of gives me an idea why there seemed to be plenty of accommodation still available in town (hint, hint). But don't worry, no small number will discourage me. I am not too good at memorizing faces so that is a preferable number. :)
I will sign up myself when I get that air ticket nailed.
-- David Shimamoto