We are running IE9 since a few weeks now, and it's an absolute cumberstone that the status-bar does not show the security zone information anymore. It's actually just showing the zoom-level, all rest of the bar is completely empty. Why oh why do I have to tell my customers to go to the file menu (which is hidden by default too, although we unhide that by GPO) and to properties to view something that has always been on-screen?!
Please get that back. It won't make the screen more complicated, and besides that the statusbar is optional anyway. All options displayed on that statusbar should be optional too.