I'd like to request that when a document's tab is pulled out of the tab bar ("detached" from the main window) that the resulting window includes the full user interface (tool bars, page navigation, etc..) independent of the parent window. This is as opposed to the current system which generates only the viewport and shares an interface with the main window- requiring the user to switch back an forth between windows (and sometimes monitors) to access the toolkit, tool bars, and page navigation.
There is the work-around of opening another instance of Revu, but that presents it's own set of issues (conflicting session memories, overwritten tool preferences, etc.) depending on which window you close first/last.