If you have ever noticed in Vista's Explorer, whenever you open a new Explorer Window, there is this thing that animates in the bottom right of the details pane. That is what I call the energy ribbon, and it is GONE! Why??? It is a symbol of aero-ness!
I feel that it is very unique to aero and it should still be in the Explorer! It is so empty without the enegry ribbon!
Other places that the energy ribbon shows up: The default (vista) wallpaper, the windows energy and windows logo wallpaper.
Bring back the energy ribbon to the Details Pane or include it some (more) places:
Watermark background for Windows Explorer