http://www.microsoft.com/windows/internet-explorer/worldwide-sites.aspx It seems there have some improvement compared with previous versions. Two new features are online videos which guide you walk through them: 1. Accelarator. 2. Web slice.(Help you in keeping eye on what is changing at the site you are favorated...)
Please download IE8 from the link at the top of this thread.
It's really more faster than IE7 while visiting the sites i always go to there, even though it's slower than Safari, Googel Browser or Opera and Firefox as well. This is de fact that IE more compatible to over 80% site because it's the first option when developers is going to build a new Web site and definitely IE will be the first envirionment to get developed code tested before getting them rolled out.