That's a good point; thanks. I'm not sure if Dropbox diffs at sub-file level - perhaps it does. The short story is that Dropbox + Truecrypt work fine, but may

That's a good point; thanks. I'm not sure if Dropbox diffs at sub-file level - perhaps it does. The short story is that Dropbox + Truecrypt work fine, but may not (or may!) be optimal.