CoolHunting points to a new music service called phling! phling! The system connects the music, podcasts, and pictures stored on your PC to your phone and the phone of your friends. The phling! site says:
You can use your mobile phone to listen to your music anywhere, anytime without having to first synchronize with your PC. With phling! you can also let up to six phling! friends listen to your music, and they can let you listen to their music. You can read and submit song reviews, find out who is listening to what, browse user profiles, and stay in touch by posting messages to your friends’ bulletin boards and your own.