Whilst you can export a playlist etc, it would be great if this could be expanded to have either a local backup / restore function (e.g. in case you accidentally delete a playlist) etc.
Taking this one step further maybe it could be a cloud-based service or have a social aspect (e.g. ability to share with others).
Backup improvements are being developed to include a better dashboard user interface, and the backup itself to better encompass playlists, favourites, system information etc.