I know John and saw how he was developing the project. I'm a beta user from the day he had a more or less stable build. And I moved all my personal documents there.
Almost everyday on a lunch he told about challenges he faced. He pick a hard issue to solve and stay sharp on the idea. The idea, that you deserve a safe place for your notes, documents and photos. Not everything is for sharing, we have a lot of personal. It could be your business notes, plans and documents. It could be your diary or your family pictures. There are moments and thoughts you would like to save for you. It's yours, it's private and should be in a safe place.
