I think I have to agree with Chris L ... even though I've never been to one, the idea of riding a bunch of bikes at night "to promote cycling" doesn't quite fly with me ... it may work with biking addicts, but not to those who oppose it. I mean, it won't convince anyone to do it.
CM reminds me of street races that we used to have around here. I've been to one before, and it's a lot like the CM description: a bunch of cars, following each other, messin up traffic ... and a few bonuses like having the cops chase em around a few times.
__________________