Seems useful, and a step in the right direction. I think the future of file sharing is permanent URLs to files stored on decentralized hard drives, with dead simple access control settings (ie here's the list of email addresses that can access this file). You need either ipv6 (plus an ISP that allows port 80), or some sort of proxy for this to work. Range requests must be supported. Also I think it needs to be designed from the ground up for sharing not just with people, but also with apps, just like you can access Google drive data using their API. It's surprising to me that WebDAV is the closest thing we have to an open protocol for doing this sort of thing. I think we need something simpler, with a standardized auth protocol. Maybe RemoteStorage, but honestly it still looks complicated to me.