On the topic of using Tor with a non-persistent OS, what I'd really like to see on that front is a federated encrypted bookmarking sync service integrated into

On the topic of using Tor with a non-persistent OS, what I'd really like to see on that front is a federated encrypted bookmarking sync service integrated into the browser. Would be really neat if you could "sign-in" to the browser using a human-memorizable identifier to restore bookmarks and other settings. Obviously that opens up additional attack surface for de-anonymization attacks, but I think it could be done reasonably securely given sufficient effort. (Hashing and key-stretching the login credentials, fetching bookmarks over a separate Tor circuit, storing the encrypted payload in a distributed database rather than a centralized server, etc.) Done right, a system like that could potentially even lead to an open standard for synchronizing bookmarks, passwords, and other settings across different browsers.