Doubletwist has proved worthless for me. Won't recognize the droid at all (and yes, I do know how to mount the USB and have tested it in every way). I've never seen DoubleTwist recognize ANY device.
Win 7, 64-bit, Droid
After reading here maybe I'll try the motorola media link. I had been really looking forward to DT converting my m4a files so I could listen to my iTunes music. I feel pretty silly having paid Apple a bunch of extra money to upgrade my library to non-DRM. In theory it may be non-DRM but it's in a format that isn't really useful for most players other than iPods.