forcing touchscreen interface UI elements on people who don't have touchscreens
I still don't get what exactly you mean by this. I mentioned dragging down to close last time but that still works via the tried and true Alt+F4 method, and none of the other things you mentioned made any sense to me. The corners aren't a touch UI thing because you don't use the corners in touch. Could you elaborate on exactly what these touchscreen UI elements are that you are forced to use with a mouse and keyboard?