Ok, so some people are thinking about GUIs...

Here's a neat tweak on the scrollbar concept, Popup Scrollbar Concept, though it strikes me as kinda familiar and I can't exactly put my finger on it. I do note that it does lack absolute repositioning though. But then this is the kind of research that we need to do, especially as in the future we won't know if it's a mouse or a finger manipulating the UI.