I think I saw you there on Saturday as I was entering through the Osbourne Garden. Did your RB have a giant funnel-shaped magnifying hood?
I came into the event expecting to see at least some people shooting film (I myself was using a Konica Autoreflex T3--maybe you noticed me?). I did end up spotting a guy with a Fuji GS645 (I had also encountered him exactly a week earlier with a Hasselblad XPan at Coney Island) and a young lady with a Pentacon 6. Saw quite a few Lomos, Dianas and Holgas too.
A shame about the trees being post-bloom this year.