> Not quite so fast. 
> 
> 1) Now you need to now syncronize all of the
>    prefixes across your organizaiton.

No. As in other uses (like extension-element-prefixes) the prefix
is just a local pointer to the URI. Prefixed son't have to match with
the prefixes actually used on function calls.

> 2) You are still limited to implementations in the 
>    languages referenced in this imported style-sheet
>    since there are no other resolution mechanisms.  
>  

No. If a processor finds an extension function in some namespace it can
do whatever it wants to find a definition for that function. If
xsl:script doesn't supply one (or even if it does) it may use some other
mechanism.

David

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