The MIT Media Lab Playful Systems group is working on an experiment in data sharing, on a personal level. It’s called 20 Day Stranger. You install an app on your phone that tracks your location and what you’re doing, and that information is anonymously shared with a stranger. You also see what that stranger is doing.
I can’t decide if this is creepy or touching, or somewhere in between. I put myself on the waiting list to find out, but I imagine the experience has a little bit to do with the app and much more to do with the stranger on the other side.