New Post: No Dynamic binding available for tab pages of LayoutDocumentPane

I'm trying to take some existing code that is currently using a TabControl class with the ItemsSource property bound to an observable collection of ViewModels (see link below).
There doesn't even seem to be an ItemsSource property for the LayoutDocumentPane class. Is there any way to dynamically bind the tab pages like I'm trying to?
http://codingtales.blogspot.com/2010/02/creating-complete-tabbed-interface-in.html