Good question, I don't know. But for building stylesheets, don't forget you kinda *need* the parser to be namespace aware, otherwise the stylesheet itself can't be built.
Depending on your XML file and how you're writing your stylesheet, you may not need namespaces for the parse of the xml while it's being transformed, which is what I presume you're talking about. Oh, an end-run idea: how about parsing the file yourself into a DOM and then passing that as a DOMSource to the transformer? - Shane
