RealView projects points of interest in the view of the camera of your cell phone. When you pick this menu item, the view of the phone camera is displayed on the screen. In addition, the selected Points of interest are rendered in the view. Therefore, there is a similar mechanism of choosing the Points of interest as it is in map search mode.
This feature was inspired by wondering "what are the names of the surrounding peaks?" when hiking in the mountains. If there is information concerning the surrounding peaks available on the Internet, then there will be a marker put atop of all of such peaks. This feature is useful in cities, too.