XML Content is an XML entry, XSL transformation, and XML validation module that leverages PHP xml and xsl support, and the drupal output filter system.
This tiny module provides a new tab which allows a user to post a new revision of the body of a node only, this is, she will only be able to edit the body of the node. No other part of the node form is shown, besides the title for information only (no editable). In order to have this functionality without having to give 'administer nodes' permission to the user, this module needs a patch for the node.module. This patch creates new permissions on revisions and nodes (delete).