Do something for mobile please? You're one of the most trustworthy providers, particularly if you build things on mobile so we don't necessarily need to trust you...
We're genuinely interested in what you mean by this ...
Android devices are unix devices, and (I assume) either have ssh/scp/sftp/rsync in their userland or it can easily be placed there...
If I had a modern phone, which I do not[1], I would probably just load duplicity[2] on it ? But now that I think about it, in the same way that I have zero data on my laptop, I assume I would also have zero data on my phone ?