Just thought I'd mention it in case anyone is interested. November 12 and 13. http://www.mathsjam.com
Numbers are limited, we have 50 rooms (of 100) already reserved, and 32 paid for already.
ADDED IN EDIT: Wow - a downvote. Do people think this is inappropriate for HN? It's in a submission about conferences, and pricing thereof, and I thought people might be interested in another data point. Not least, I thought people on HN might actually be interested in the event.
If I'm wrong I'll happily delete the comment, but I'd love to hear your reasons, rather than just getting a drive-by downvote.