Sorry Eugenio, I obviously didn't make myself very clear or I'm misunderstanding your need. They are automatically synchronised with your Android phone and available in Calendars, Apps and the Phone. I bet you wouldn't even notice the difference from using Google Contacts.

With regards to backups, already done! We have full versioning so that you can roll back to anytime you want and backups are done continuously.

Transferred, yes. Synchronised automatically to my calendar, apps, phone?

I think automatic synchronisation and periodic backup are two things you really should look into.