Yahoo announced that they're supporting the OpenID standard for a universal log-in. This could go a long way for more web site adopting OpenID. The idea of a single log-in that you can use on any website is a noble goal.
I'm not sure I'd ever use a global login account on important websites (such as those dealing with financial information,) but for general information based sites this would be a welcome improvement to managing tons of log-ins and passwords.