Hi Jim,
You should not be concerned about any reference to "http://workplacearchitects/*" .
This reference is the XmlRoot namespace attribute of the webpart and controls its XML serialization.
If you want to know more about this please check out this link:
http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlattributes.xmlroot.aspx
Please note that they create a namespace similar to ours called http://www.cpandl.com.