Playdar is definitely something–a vital piece of the revolution (to join in for a moment with Wired’s enthusiasm–regardless of Wired, it’s actually true in this case)!

Also, I liked the questions you posed on pho — curious to see if the pholks engage them. I don’t feel qualified to answer, though I’ve always thought an “auditor” would be a nice complement to content resolvers, e.g., a way for users to tell musicians how good they (the users) are at paying for music (independent of where they pay).