Philips Tune In

This new gadget from Philips consists of a flash-based player that can broadcast its signal to nearby Tune In devices and receive tracks the same way. Philips envisions users becoming their own tiny radio stations, sharing their playlists on the bus, in schools, and anywhere crowds mass. This will be a cool new way to start conversations, get to know people with similar music styles, and just listen to music.
Philips “Tune In” concept allows for anonymous music-sharing (Engadget)