Features: [Video1] [Video 2]
You can manipulate the TreeViewControl in code or by using the TreeView inspector tool and this TreeView control is skinable.
To add a TreeView control select an existing game object and use the Menu (TreeView) and select the menu
item (Add Tree View to Selected). With the inspector, you can add items with the IDE and move them around.
The TreeView can be constructed at design time with the IDE inspector or at runtime programmatically. The code interface is simple and looks very similar to a Silverlight TreeView.