I found this linked to on the Mash SF page. Be sure to watch the totally awesome video on the home page.
I post this here because I think they have a lot of the same ideas in mind that we are talking about (and a kick-ass poster). This is an evolved, organized set of ideas that yielded 200…yes, 200 riders for the day. More NorCal excitement…enough to make you want to sell it all and move out west.