'Google login' is widespread as the auth middleware on other sites. At least the sites worth trusting your data too ;) There's http://code.google.com/p/google-

'Google login' is widespread as the auth middleware on other sites. At least the sites worth trusting your data too ;) There's http://code.google.com/p/google-authenticator/ http://code.google.com/p/google-authenticator/ for SSH, http://wordpress.org/extend/plugins/google-authenticator/ http://wordpress.org/extend/plugins/google-authenticator/ for wordpress, http://helpdesk.lastpass.com/security-options/google-authenticator/ http://helpdesk.lastpass.com/security-options/google-authent... for lastpass etc. You can use all these implementations with the very same iPhone/Android/Blackberry authenticator app you use for Google