el zippo. well, not really. i've only ridden with one other fixed rider around here. i've seen a couple locked up during the day; i'm guessing they are some folks commuters. 20 minutes south, i see quite a few more in boulder. downtown denver? quite a few.
no real scene to speak of though up here though. i just commute, and do my road rides on mine. liked it enough once i started riding it, i just recently got rid of my geared road bike.