Binding to a property of ListView SelectedItem outside of the ListView

I'm trying to bind a Label outside of a ListView to a property of the SelectedItem in the ListView. Is this currently possible?

Basically, this is a master detail view on the same page. The ListView shows minimal information, that when clicked on, shows the detailed information below the item. Imagine this as the native iOS mail application in Landscape mode where it shows the inbox, and when they click on a message, it shows the message on the right while still showing the inbox.

Any help is greatly appreciated.

Regards,

John