The key thing is tab browsing that looks and feels like you are using Firefox. Even the search button at the left hand side looks and fells like this free browser. Just as in Firefox you can ad search engines.

There are some extra features as its easier to block the nasty sites and the RSS button is more accusable. Of course you can bookmark tabs as well.

Those who likes Firefox will like the new Explorer no doubt about it but so far I haven't seen anything really revolutionary. If you don't have one you can download Firefox today and practise for Explorer 7.0. µ