I'll be at OSDC 2010 in Melbourne, Australia this week, and will be presenting a Xapian-related talk on Friday afternoon: http://2010.osdc.com.au/ If any other Xapian developers or users are there too, do say hi. There doesn't seem to be a formal BoF stream, but if there's interest we can try to arrange something at lunchtime or one evening - drop me an email. Cheers, Olly