Where else should the localName be set for CMIS createDocument?

Question

Here's part of the xml that gets created when I call createDocument:

<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <createDocument xmlns="http://docs.oasis-open.org/ns/cmis/messaging/200908/">
      <repositoryId>e5b2c8ef-5151-4678-bb98-87c4f7824ee2</repositoryId>
      <properties>
        <propertyId xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/" propertyDefinitionId="cmis:objectTypeId" localName="cmis:objectTypeId
" queryName="cmis:objectTypeId">
          <value>document</value>
        </propertyId>
        <propertyString xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/" propertyDefinitionId="cmis:name" localName="cmis:name" displayNam
e="3pages.pdf" queryName="cmis:name">
          <value>3pages.pdf</value>
        </propertyString>
      </properties>
      <folderId>-1</folderId>
      <contentStream>
        <length>41673</length>
        <mimeType>application/pdf</mimeType>
        <filename>3pages.pdf</filename>
        <stream>
          <xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:http%3A%2F%2Ftempuri.org%2F1%2F634698393827196501"/>
        </stream>
      </contentStream>
      <versioningState>none</versioningState>
      <policies xsi:nil="true"/>
      <addACEs>
        <permission xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/">
          <principal/>
          <permission>cmis:read</permission>
          <direct>false</direct>
        </permission>
        <permission xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/">
          <principal>
            <principalId>Home Owners</principalId>
          </principal>
          <permission>cmis:all</permission>
          <direct>false</direct>
        </permission>
        <permission xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/">
          <direct>false</direct>
        </permission>
        <permission xmlns="http://docs.oasis-open.org/ns/cmis/core/200908/">
          <direct>false</direct>
        </permission>
      </addACEs>
      <removeACEs/>
      <extension/>
    </createDocument>
  </s:Body>
</s:Envelope>


the response I get back from my Sharepoint 2010 server which has an enterprise license is:


<?xml version="1.0"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Body>
    <s:Fault>
      <faultcode>s:constraint</faultcode>
      <faultstring>LocalName MUST be specified when createDocument. </faultstring>
      <detail>
        <cmisFault xmlns="http://docs.oasis-open.org/ns/cmis/messaging/200908/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
          <code>409</code>
          <message>LocalName MUST be specified when createDocument. </message>
          <type>constraint</type>
        </cmisFault>
      </detail>
    </s:Fault>
  </s:Body>
</s:Envelope>
 Should I be setting localName on some other object other than on the properties?  Does Sharepoint have a required localName that I'm not setting correctly?