Quoted from another thread by srl7741
"Below is the instructions on how to listen to mp3's via bluetooth.
you have to do it in this order and exactly or it will stop.
1.open media and play music i play all and shuffle.
2.open your browser.
3.go to google and query anything that will give you a phone number link to call from the browser. (i googled road conditions phone number)
4.go to phone number and highlight it.
5. click trackball
6. click again to confirm to call the number.
7. once you are connected just hang up before first ring ends.
8.music in your ear.
make sure you do NOT go back to browser session. don't touch anything. the volume on the pearl up and down will work but dont hit the ball or return.
basically all you can do is listen to the music you can't advance or browse or anything or you lose the connection. if a call comes in while listening after the call you will have to repeat 1-8 again.
It's not perfect but it works and i'm sure with future os releases it will be built into the phone."