Can I sign up somewhere to get notified when "back up to your own cloud destinations" is complete? This is all I want in a backup service. Install on all my devices (this must include mobile devices too), send everything I care about to as many destinations as I provide, all of which I manage myself.

As great as cloud backup solutions are, the weak point is always getting things out. If I can just have it in my own S3 bucket, I can do absolutely anything I like with my files. Count me as very interested if this is where you're going.

Also, trust and security are going to be huge. How do I know you're not going to leak and / or abuse the depth of access you get by owning my backups?