This thread needs to go... why would someone care what another person is listening to especially since it's so asynchronous? That is, I post what I'm currently listening to but the song has changed before anyone sees my post
On the other hand, the "current track" feature on MSN is brilliant because your friends (not strangers who could care less) know what you're listening to "realtime".
What would be better is like a playlist of the week, where people post the 5 to 10 songs they listened to most in the last week. You guys get the general idea....