There was a spectacular turnout of people. It was nice to see people I've met at UKUUG conferences and such like, but also nice to meet some new people, including Europeans who had ventured over.
There are some of pictures from the weekend on flickr, but they're not very good because my camera was broken (more on that another time). There are some (much better) pictures linked at the bottom of this wiki page.
On a related note, I'm sad to see Matthew Garrett resign from Debian. He joins several others including Scott James Remnant (both of whom were at the BBQ) who have made the move to "full time" Ubuntu, having realised that Debian just wasn't fun for them anymore.