It would be interesting to compare this with WebID. If you allready have a WebID you can try it out at http://foafssl.org/srv/idp

We will be adding a nice box to make it a one click affair to get a WebID. For the moment try https://web.archive.org/web/20120408065322/http://webid.fcns.eu:80/? (though it does not support IE )