A very subtle change yet one more crossed off a list of places we know of that can benefit from this type of UI:
In the type properties of views you can specify tags. In previous releases you would see a list of tag types but if you wanted to make a new type you would have to exit the type dialog and go to the Manage tab to create a new tag type there. Not convenient. in 2012 you can jump to the Tag Type dialog directly from the View Type dialog.
View Type dialog and new launcher control
Destination: Tag Type dialog