Hi again,
Further clarification I received: From a product perspective, NetApp is moving towards a consolidated unified data replication story that is SnapMirror, which includes transitioning away from SnapMirror vs. SnapVault terminology, as well as licensing, schemes.
http://www.netapp.com/us/products/backup-recovery/snapmirror-data-replication.aspx
The DR (SnapMirror) and backup (SnapVault) terms used in the above describe the aspects of the SnapMirror unified data replication architecture. AltaVault as a long term target represents the backup side of the SnapMirror stack, as opposed to hot replication (DR). Hope this clears up things.
Regards,
Christopher