Cool site. The idea seems so simple (not a bad thing) and it looks like it's gaining lots of traction. I don't know that I'd become a part of the network, but I can see the appeal. Does anyone know what idea this YC group started with? I get the feeling this startup is of the "bite off a small piece of a bigger problem" type and that it will grow into its original intention over time.
I believe Jon & Co. were working on DailyBooth for some time before YC (see http://news.ycombinator.com/item?id=479352 ). I'm not sure if/how YC changed their focus/strategy, though.
Since then he's also launched a music startup, but I'm guessing that's not part of YC. (Can't remember the URL, though.)