Two sensors just below the screen detect when you reach toward it and automatically trigger more information to appear for example, play, pause and other controls show up along the bottom of the audiomenu.
To further placate customers that opt-in for the handset, as well as to make up for the glaring lack of Android 4.0, elements of that more advanced system have been incorporated into the Ion: a screenshot shortcut (visible on the power menu) and audio controls on its lockscreen (accessible by swiping the time display to the left).