Winamp control via bluetooth on Nokia 7650/3650 or Sony Ericsson P800
Just a cool little bluetooth tool one of my friends showed me.
Just tell it where your winamp is, where your mp3's are and it does the rest. you can pause, play, stop, track forward/backwards. load single songs or entire directories. and adjust the volume.
I'm not sure how usefull it will really be but It's quite fun. It looks like it can also be used with a computer with a net connection to control a remote computer, but I have not played with that yet.