I've been trying to figure this out, but intermittently, my music cuts in and out when on my bike. It's not the widget on my home screen, I removed it, same problem. I'm 95% sure it's unlocking somehow during the vibration (I've dried locking apps, the drawn lock, and standard lock. all act the same way) and then somehow getting to the notification screen and pausing it there. All my other sounds (text messages, GPS, notifications) work without cutting in and out.
Is there a way to get my droid to stop cutting my music in and out? It's driving me absolutely insane.
Phone is a moto droid. It's less than two months old.