Build 7.0.5450.4 allows users to reorder tabs by dragging them left or right, enables horizontal scrolling while zooming, allows users to update RSS feeds automatically, disables DHTML scriptlets and ActiveX controls by default and also removes support for DirectAnimation. Extension support has also been added, and a few extentions are available now.
For you IE users out there, a new beta of version 7 has just been released. I think IE will have to come up with a lot more unique features than they have in order to gain back the users they’ve lost though.