RMAN TDE BACKUP'S

One of my peer's tested the RMAN TDE backup and got the following list of results:

1. RMAN Transparent Encryption can create and restore encrypted backups with no DBA intervention. The wallet must be open.
2. RMAN backup created as a backupset can be encrypted. RMAN image copies cannot be encrypted.
3. RMAN encrypted backups can be taken to disk. Advanced Security Option licensing is required.
4. Encrypted backups to tape are only possible with Oracle Secure Backup as the media manager. Advanced Security Option licensing is not required.
5. Oracle Secure Backup is a Oracle separate backup product. Oracle Secure Backup can not be integrated with any 3rd-party backup tools.(for example :Veritas NBU)
Oracle Secure Backup is an alternative to those product offerings(just like Veritas NBU).