I see that Internet Explorer VII has assimilated tab browsing, a la Mozilla's Firefox. They also won't let you keep using the thing until you choose a search function and then save the settings. Resistance is futile.
At least you can roll back to IE6 if you don't like it. (Or so they say.) I may keep it simply because of the "Clear Type" browsing (which one can toggle). I kind of like the way the fonts look with it.