Multiple Google Maps on same page

I have a tabbed pane withing tabbed panes type of layout where several tabs basically simulated using VLayouts and HLayouts contain Google Map instances. Only one is ever visible at a time. None are visible initially. The maps render but without any of the controls I specify during map initialization with MapOptions etc. which I could live with as long a click and drag allows zoom and pan. DblClick to zoom and drag to pan works but only with whichever map instance is rendered and interacted with first, then the others are non-responsive to mouse events. I need each map to be separate instance and maintain its state so all are declared static at top level of page hierarchy and I need each to be able to respond to its own events separately. Using Smart GWT from 2008, not sure of version and Google Maps for GWT from 2011.
Seems like smartGWT only registers a event handlers for the first map div initialized. Help.