That is a pretty cool idea, but because it's not really been done before, I would imagine that it's hard to get people to follow along with actually getting a friend to help out. I didn't want to read the whole page of instructions here, so I just clicked the link and tried to figure out, but it wasn't very obvious, and I ended up coming back to try and read what was supposed to happen. It might be too complicated. It would be even better if you could forgo finding a collaborator and just go on alone. I know that seems like it would lead to less 'virality' but I personally think that's actually a big bother to a lot of people. If they go on alone, and enjoy it, then they'll start telling others.
