It will possible to manually invoke the saving and loading of the dock state when the built-in dock state persistence is used in order to avoid the automatic saving and loading of the state on each postback. 

When a RadDock control is dragged to the bottom of a page, the page will start scrolling.

Request new properties for the RadDockZone to allow the display of a message, image, or style when no docks are present in the zone along the lines of the EmptyMessage property of the RadInput control.  The properties could be:  "EmptyZoneMessage", "EmptyZoneImage" and "EmptyZoneCssClass".  See the following thread from 2010 where a solution to this was discussed:  http://www.telerik.com/forums/empty-raddockzone-message

The RadDock will be moved with the cursor when the scroll wheel is used while dragging the control.