RE: namespace node implementation

> Also note that existing XSLT implementations must implement the 
> XSLT/XPath 1.0 semantics of namespaced nodes.  This is very 
> expensive. 

It's probably not as expensive as you imagine, unless you imagine that
because something is described as a "node" in the formal data model, it has
to be represented by an "object" in the implementation. This is of course
far from being the case.

Michael Kay