I want a Google Backup feature that i can sync my tags, favorits, and my settings into my Google account, and allow users to edit tags and station on xiialive.com. First, just make simple backup that backup 2 files, settings and tags/favorits/links xml file to Google, and after that you can do advanced backup.
Google Backup Service Android developer: http://developer.android.com/google/backup/signup.html
Google Cloud Platform Console: https://cloud.google.com/appengine/docs/python/console/datastoreadmin
Customer support service by UserEcho