That site (pielab.org), and Project M seem really cool, but I must admit I don't think I totally understand what they're about. (I'm used to art and design co-ops/firms using slightly vague language so as to not shut any doors, but sometimes it's hard to understand their past work.)
Would love to hear any examples or stories about them you can share.
It's all kind of vague to me as well, but from what I understand a few months ago a group of designers met for a 2 week brainstorm session on something to in the community in Alabama. They came up with PieLab, and within those 2 weeks found a storefront, etc. Now they're selling pie in Alabama and integrating into the rural community. I'll see if I can round up any more definitive answers for you.
http://www.pielab.org/