windows 7, VS2010, Galaxy S3 - followed trouble shooting steps in help
1. turned on developer options then USB debugging on phone
2. Set security to allow unknown sources
3. device does not show in command line adb list
Device does show as a storage device in windows explorer and I can navigate sub folders on device from computer
Changed phone USB mode from media device to camera -(the only 2 options) no help
So despite being set in USB debug mode device is still being recognized as a storage device.