A Mobile Peer-to-Peer Application for Distributed Recommendation and Re-Sale of Music

This paper describes a mobile application, which was originally designed as an extension for the PotatoSystem, which is a distribution system for virtual goods with the focus on digital music. Its innovative idea is that buyers can become resellers and earn a provision for redistributing purchased files. With the "Mobile Music Messenger", a J2ME application for modern mobile phones, users can find other users with similar musical taste to sell them own songs or to find new pleasing music for themselves. The distributed recommendation algorithm uses the peer-to-peer system JXTA while avoiding a central database. Users may pre-listen recommended songs and contact each other. These functions are embedded in a music chat system, whose future enhancements will be covered as well. The application can be extended to function for all mobile music providers. The mobile users of all partaking mobile music stores will become mobile affiliate community