I just uploaded a new version of the Enhanced Data Generators over the weekend. This new version 1.4 contains misc. bug fixes and the addition of a new data generator, XMLGenerator (Note: v1.3 and above support only Visual Studio 2010 and .NET 4.0).
The XML Generator is based on the XML Generator MSDN sample code and wraps it to work as a data generator. You basically provide an XSD and it generates XML that fits that XSD. Should be useful to fill XML type columns with valid data that fits a XSD.
Note: Since I use the MSDN sample, this does not support very complex XSD patterns. But I think, this should satisfy most of the common scenarios.