The Viktoria Institute in Gothenburg, Sweden, is working on a concept they call PUSH MUSIC, which is software that automatically shares music files with nearby users who have similar tastes. It monitors the listening history of the user, and develops awareness about what kind of new music he might like. The concept envisions Wi-Fi-enabled music players that automatically establish a peer-to-peer connection, enabling people to either "browse" the music collections of others and take a copy of whatever they like, or — here’s the magic part — just automatically receive music the software has selected for you.
Here is the link, and comments are open for those who know more about this. Here are the comments from www.digg.com. Can you be liable if some other listener "pushes" stolen property onto your computer? Will the risk of passing malicious code make this unworkable?