The mobile PopOver widget is tablet specific, and represents a transient view which is displayed when the user taps on a navigational widget or area on the screen. It can contain one or more mobile views which can be navigated to, if needed. The Mobile PopOver widget can be open when any mobile navigational widget (listview link item, button, tabstrip, etc.) is tapped.
Rely on the compliance of the control with the WCAG and Section 508 standards to improve the accessibility of your application.