Me too...And I wonder why the UI team has not evolved the idea of swipe here as well? I can imagine this like when you flick/swipe the application up it closes. This can work both in app window and in task manager. Just flick it to top and it is closed. I think swiping/flicking motions can be used extensively in UI thus leaving obsolete SW button out...Think of the great way the Maemo5 is acting - just touch screen outside the focused area and the focused element hides. No need for back or close button.