Just to have a better understanding of all aspects what in fact the Opacity storage is nowadays, I want to quote from their telegram group conversation among users, that has happened a day ago.

User "J" asks - "Sorry guys, it's been a while and I can't find the answers alone. So it seems you've abandoned the idea of hosting on the tangle, and are now hosting encrypted data on AWS. So could someone help me understand why this approach is really revolutionary, and not just a way of paying in OPQ for a standard encrypted cloud service? What necessitates blockchain? The keys, and the keys only? The data will never be stored on chain, I take it?"

User "M" answers - "Zero-knowledge data security and storage is what they currently offer.
They flipped the order:
Instead of whitepaper > 20 years of development > decentralized product that brings utility to everyday people
They did:
product that brings utility and generates revenue > whitepaper > decentralization.
With whitepaper coming this month.
Current competitive advantage is their live service offers true zero-knowledge privacy. The first of its kind.
With back-end decentralization, the competitive advantages will be too numerous to list."

So as was mentioned we are waiting for a new whitepaper this month!