XSLT 2.0 WD

Hi!

I have been reading the latest WD of XSLT 2.0 and some
questions came to my mind. 

I saw that in one point there was reference that:
The result tree fragment data-type is eliminated. A variable-binding elements 
with content now constructs a temporary tree, and the value of the variable is 
the root node of this tree (see [9.1 Values of Variables and Parameters]). This 
feature eliminates the need for the xx:node-set extension function provided by 
many XSLT 1.0 implementations.

So atleast one extension function is kind of included to this
version of XSLT. I did not find other references to 
extensions or processor specific functions ie. xalan:evaluate()
or other. 

Now my question is that:
Is there other implications of extensions or processor functions 
that this 2.0 version will implement?

I assume that Michael would know =)

Cheers 
Jarkko

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Jarkko Moilanen          "Erehtyminen on inhimillista, 
Researcher/ ITCM         mutta todella suuret mokat 
jm60697@xxxxxx           vaativat tietokoneen käyttöä."         
www.uta.fi/~jm60697                                           
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