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Looks like RadTabControl AllowDragReorder is broken in build 2011.2.1031 Office_Blue theme.
Was working in 2011.1 release.
<Controls:RadTabControl Grid.Row="2" AllowDragReorder="True" TabStripPlacement="Bottom" TabOrientation="Horizontal" Background="White" BackgroundVisibility="Visible" BorderThickness="1" BorderBrush="#FF008080"> <Controls:RadTabItem Header="Tab 1" /> <Controls:RadTabItem Header="Tab 2" /> <Controls:RadTabItem Header="Tab 3" /> <Controls:RadTabItem Header="Tab 4" /> <Controls:RadTabItem Header="Tab 5" /></Controls:RadTabControl>Was working in 2011.1 release.
