Next-Steps Monkeysphere Projects:
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+Handle unknown hosts in such a way that they're not always removed
+ from known_hosts file. Ask user to lsign the host key?
+
+Handle multiple multiple hostnames (multiple user IDs?) when
+ generating host keys with gen-key.
+
+Make sure alternate ports are handled for known_hosts.
+
+Add environment variables sections to man pages.
+
+Script to import private key into ssh agent.
+
Provide a friendly interactive UI for marginal or failing client-side
hostkey verifications. Handle the common cases smoothly, and
provide good debugging info for the unusual cases.