When one split pane is closed the other should maintain its position
Should have a popup menu on the desktop
Need to complete windows menu (MenuModel needed?)
Need to carefully check event delivery
Changing Look & Feel when tabs not visible causes the tabs to have old look and feel
Toolbar: Auto mode does not work yet
Toolbar: No externally accessible toolbar menu
Toolbar: Docking/Undocking toobars doesnt work properly
Toolbar: New toolbars dont show up until toolbar resized
