Terminating apps (with one hand): a swipe from right produces a stacked view of each active screen, including the "home" screen (the one with scopes). Apps get terminated by upwards flicking of the relevant page. Three issues for now: 1) it is not always quickly evident which is the home screen and one can needlessly flick at it (not being killable it bounces back down; 2) it is sometimes awkward to "get a grip" on a screen to do the flick (they then shift left/right in the scrolling action) and 3) there is no way to kill the active app in one gesture - you have to swipe right, re-position the thumb (whatever digit) and then flick upwards and this is a tad irritating.