In the AIR Tasks V2 blog entry Jack says "NativeWindow: This was one of the most useful additions to the Ext.air package.".
Conceptually I don't understand this comment. I assume a standard Ext window is just a collection of DOM DIVs formatted to resemble a classic modal window and hence quite resource efficient. Using an Ext.air window presumably instantiates a new instance of a browser control in the new native window. Why is this preferable?