Comment nCryptedCloud (Score 1) 165
Check out this startup: https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.ncryptedcloud.com%2F
Basically their primary piece is encryption into the public cloud while maintaining the ability to share your data (encryption/decryption is all client side). They are also combining the backend storage, so your view would be across drop box, Google drive, etc.
They are in "early access" now but I hear they going GA soon.