> all my files in the cloud, encrypted by me, accessible from any program on any of my computing devices, cached locally as needed, and served by providers that

> all my files in the cloud, encrypted by me, accessible from any program on any of my computing devices, cached locally as needed, and served by providers that I choose and can freely migrate between. Author forgot to list several important req. that are implied. Being able to update/add files. Being able to "manipulate" files with arbitrary software across all devices. That last one is the real problem needing solving. All files in cloud, universally accessible is solved. It's called HTTP. Except there is not universal en/decryption across all devices. HTTPS + server side en/decryption might work.