"Bill Gates sees end to passwords in sight:
Bill made it clear that he really cares about privacy and security, just as he is committed to helping build an identity metasystem that moves the industry to the next stage of collaboration and reach. ...Now, with Windows Vista, Gates feels he finally has the right weapons to supplant the password as a means of verifying who is who on computers and over the Internet. The new operating system, due later this year, introduces a concept called InfoCards"
For detailed background, whitepapers on Infocard, design principles check out Kim Cameron's blog at www.identityblog.com