SPARUL and SPARQL Protocol

FYI,

I've proposed[1] an extension of SPARQL Protocol to handle return  
values from the INSERT(DATA) and DELETE(DATA) operations defined in  
SPARQL/Update[2] (aka SPARUL).

I'd appreciate any feedback or suggestions you might have.

Regards,
Brian Manley

[1] http://blog.triplescape.com/index.php/2008/08/25/sparul-and-sparql-protocol/
[2] http://jena.hpl.hp.com/~afs/SPARQL-Update.html