As Microsoft officials say, new browser will pay more attention to the site, and will adjust to it, for example back and forward buttons will reflect color scheme of the site. “The browser saying, ‘look at the site, not look at the browser” Dean Hachamovitch, VP Microsoft.
“The site is brought forward, because the browser is less of a destruction, it sits in the background,” said Dean Hachamovitch
New features and demos can be found here: http://ie.microsoft.com/testdrive/views/alldemos/default.html
Once we will review new IE9 we will post more information and screenshots.