Access to Schema API information

I have been implementing a Saxon extension that exposes the Schema 
Component Model to XSLT and XQuery applications. It makes heavy use of 
the new 3.0 facility to have functions as first-class values, so every 
schema component is represented as a function: the argument to the 
function is the property name, and the result of the function is the 
property value. See here for a description:

http://dev.saxonica.com/blog/mike/2012/05/#000190

Comments welcome. I think this interface is eminently suitable for 
standardization.

Michael Kay
Saxonica