Yes, a magic wand. And if you know the right words it will take you to the magical land of GUI Oz....
Actually, I think it's designed as more a locator kinda thing. That way, you always know where the tip of the cursor is going. It's especially helpful when your cursor disappears under dropdown menus (like it tends to do in this beta). Odd...the cursor will go under the dropdown menu, but the trail goes above it.......