Basically, imagine if by knowing one identifier that you've publicised as being yours, I can... * Type it into an xTalk-enabled web browser to find your person

Basically, imagine if by knowing one identifier that you've publicised as being yours, I can... * Type it into an xTalk-enabled web browser to find your personal website (the web server software you're using to host it would simply need to add support for responding to DNS-like requests coming from xTalk in addition to listening on port 80 for your usual HTTP requests; i.e. your web server also becomes something like your own DNS server that responds with its IP address over xTalk to whoever requests it so that they may then connect to it over port 80 like a standard web request). * Use it in an xTalk-enabled messenger to contact you. * Use it in an xTalk-enabled BitTorrent client to download files from you. No passwords involved, no creating user accounts anywhere. Your one private key makes all this possible and it is yours to keep on your own machine. These scenarios are just off the top of my head right now. The web browser example seems to work because it's one of the demos I've written. Obviously I haven't tested it in the real world so I can't say how fast web requests would load in practice. I also wrote an xTalk-enabled web app demo that serves a standard web page with a contact form on it for sending short messages. When you submit the form, it forwards your message on to xTalk. The recipient can read your message through a web interface or even Telnet once they receive it.