Well, they do show how to create a Blog (without any kind of database server setup and believe me - it's very simple!), although I need to find a way to save it between sessions (when you close Opera - entries are gone). They have sandboxed filesystem, so there's probably just a way to dump JSON to a file and reload on start.
Which is cool, but again when you decide to leave for vacation for a week and take your laptop with you to look up dinner options where you're going and don't leave it running all day in your hotel room - no one can read your blog! Am I missing something?
That's also what I'm looking forward to see.
Personally my solution here would be distributed P2P: encrypted content dispatched through neighbours/servers (for some part of the content only, you could choose, for your blog but not necessarily all your shared disk).
I think this + some distributed P2P could well be the web3.0: a new way poeple could use and share their data (a huge open facebook killer).
