RVW standard metadata format for reviews

This is the standard review format as it looks at the moment. I've registered the address with PURL - any comments are welcome, then I'll give the format to RSS harvesters so they can pick up reviews.
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:dc="http://purl.org/dc/elements/1.1/"
         xmlns:rvw="http://purl.org/net/rvw">
<rdf:Description rdf:about="http://www.amazon.com/exec/obidos/ASIN/0156027321/"
    dc:identifier="ASIN:0156027321"
    dc:type="Text"
    dc:title="Life of Pi"
    dc:creator="Yann Martel"
    dc:publisher="Harvest Books"
    dc:date="2003-05"
    rvw:reviewer="HubLog"
    rvw:reviewerLocation="http://www.pmbrowser.info/hublog"
    rvw:reviewTitle="The review headline goes here"
    rvw:reviewDate="2003-05-08"
    rvw:rating="7"
    rvw:review="The body of the review goes here."
    />
</rdf:RDF>
Updated (2003-05-12) to:
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:dc="http://purl.org/dc/elements/1.1/"
         xmlns:rvw="http://purl.org/net/rvw">
<rdf:Description rdf:about="http://www.amazon.com/exec/obidos/ASIN/0156027321/"
    dc:identifier="ASIN:0156027321"
    dc:type="Text"
    dc:title="Life of Pi"
    dc:creator="Yann Martel"
    dc:publisher="Harvest Books"
    dc:date="2003-05"
    rvw:type="Book"
    rvw:typeURI="http://www.pmbrowser.info/rvw/types.htm"
    rvw:reviewerName="alf eaton"
    rvw:reviewerMbox_sha1sum="4057e48e7bf04a1bead63f9c6d18b4245a52db03"
    rvw:reviewerSite="HubLog"
    rvw:reviewerURI="http://www.pmbrowser.info/hublog"
    rvw:reviewTitle="The review headline goes here"
    rvw:reviewDate="2003-05-08"
    rvw:reviewBody="The body of the review goes here."
    rvw:reviewURI="http://www.pmbrowser.info/hublog/archives/1234.htm"
    rvw:rating="7"
    />
</rdf:RDF>