Look what I just found: Maidsafe (proxy?) 
The idea of a proxy would be that you have a remoteStorage API in front of SAFE via a server program that can speak the SAFE protocol. That way it would just be entirely compatible with plain remoteStorage, as long as you’re using an account on such a server.
That’s okay, because remoteStorage is also just a key/value store, yet with the additional feature of directory listings in JSON.