I'm using Visual Studio 2010, I can create a new WPF solution and add the Reference 'Infragistics.Windows.DataVisualization.Map.v10.1'

xmlns:igGauge ="clr-namespace:Infragistics.Windows.Map;assembly=Infragistics.Windows.DataVisualization.Map.v10.1"

This causes the designer to throw an error: 

Error        1             Could not load file or assembly 'Infragistics.Windows.DataVisualization.Map.v10.1, Version=10.1.20101.1, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)          C:\Projects\UserControls\MyUserControls\MyUserControls\MainWindow.xaml        1             1               MyUserControls

Error        2             System.IO.FileLoadException was thrown on "C:\Projects\UserControls\MyUserControls\MyUserControls\MainWindow.xaml": Could not load file or assembly 'Infragistics.Windows.DataVisualization.Map.v10.1, Version=10.1.20101.1, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)               C:\Projects\UserControls\MyUserControls\MyUserControls\MainWindow.xaml        1             1               MyUserControls

I have added all references to Infragistics, references that I thought were needed, and just the map with the same results.

As soon as I remove the references the problem goes away and the designer is usable.

I notice that the toolbox does not have the xamMap tool as an option and if you try to add it choosing Tools\Choose Tool Items I got an error that one of its dependencieswas not found.