Position and Orientation information of seperate source systems (GPS, Compass, AR-Markers, etc.) are now combined based on their probabilistic error levels using an Extended Kalman Filter.
It is now possible to persist the scroll position of a ListView when browsing through the content hierarchy. But the ListView does need an unique identifying name (x:name) to work properly. Furthermore, if list elements depend on other UI-elements those have to be created above the ListView in the XAML.
