pasting my comment on the article itself. admittedly this only addresses one of the author's points: On any Jellybean device, if you go to Settings > System > D

pasting my comment on the article itself. admittedly this only addresses one of the author's points: On any Jellybean device, if you go to Settings > System > Developer options, and check "Show touches" to do just that, it goes a huge way towards reducing confusion when you're tapping things. Having that visual feedback means you never have to wonder if you tapped something, or what you tapped on. It's hard for me to use an Android device without it now.