Windows 7 has an option to link user accounts to an "online ID provider"; and when I asked what this meant, I was told it is OpenID. If so, could give OpenID a boost. More details here:

http://www.itwriting.com/blog/1134-openid-embedded-into-windows-7.html

Tim

IE8 has a new rendering engine. Trident is also included for the compatibility mode. Tim