Hello -- cofounder of SpiderOak here. We're at a launch event during RSA so responses will be slow, but I'll check back here later. Thanks for your interest!
I didn't quite understand what was unique about the application of crypto in your product. I had assumed from the headline it was a productized homomorphic encryption, but at least at first glance I'm thinking it is more a productized implementation of a key-value store with records encrypted client side. Is that correct?