It may sort out a lot of the existing problems as Microsoft do not comply with the general protocols at present that other developers do.
http://news.bbc.co.uk/1/hi/technology/7585741.stm
Behind the scenes, developers have made the browser more compliant with software standards, so that pages in IE8 will look the same as in any other browser.
While IE8's tab Groups and the way it sorts results in the smart address bar are novel, many have argued that the release is simply catching up to other, existing browsers.
IE8's inPrivate mode performs the same job as the Private Browsing mode available in Apple's Safari Browser, and the Web Slices function echoes Safari's Web Clips.
The "smart address bar" works much like the so-called "Awesome bar" in Mozilla's latest release of its Firefox browser, and Firefox has long had the ability to reopen closed tabs.