I always see this guy anywhere people are dressed up and might want a picture of themselves, and if it's a place that's really crowded like a gospel show where he's trying to catch ladies in their church hats on the way in, out and during intermission, he usually has a couple of friends with Graphics working with him. I've never photographed him or bought a photograph from him, but if I'm carrying my Technika, we usually exchange a few words or at least nod from opposite sides of the street.
Someone mentioned to me a few weeks ago that he got a little feature in the
Times, and I just came across it just now--
http://www.nytimes.com/2010/01/03/nyregion/03polaroid.html
Look at the slide show. Turns out that one of his specialties is Polaroid double exposures.