Jason takes a high-level look at tackling mobile-first responsive images (his next post will dig into the details). This is a really good summation of current thinking. Be sure to read the comments too: Andy chimes in with his experiences.
Josh sums up the Mobilewood experience wonderfully. He also makes it clear that futurefriend.ly is just the beginning:
This stuff is hard, and we need to do it together. This is a time to be generous, and it’s a time for conversation. Let’s get after it.