The Muve Music difference is that you can not only identify a song, but you can instantly download it without moving to another application, entering credit card information or paying for a download. It’s fully integrated with Muve Music. | Watch Shazam Video
If you create a public Shout, it is viewable to others. You can create a private Shout that will only be displayed to a person, or persons, you select. | Watch Shout Video
Yes. You can block and unblock users under Social Settings.
An Assignee is a contact whom you have assigned a specific Ringback Tone. | Watch Ringback Tone Video
Muve Music allows you to set up to 150 of your contacts as Ringback Tone assignees. Specific Ringtones can be assigned to as many as 50 contacts at a time. You can also have up to 150 Ringback tones at a time.