Oxygen XML Author
The new <oXygen/> XML Author is available both as a separate product
(standalone and Eclipse plugin) and also as a part of <oXygen/> XML Editor.
It keeps only the relevant authoring features of <oXygen/> XML Editor
enhancing the authors productivity by providing a clean and easy to use
interface specially suited for content authors. The exact features included
in the <oXygen/> XML Author are described in the feature
matrix.

Other screenshots:
WYSIWYG XML Editor
Document Type Toolbar Customization
XML Grid Editor
Oxygen XML Editor in Japanese
Comparing Directories
Comparing XML Files
The Tree Editor
WYSIWYG DITA editor
WYSIWYG DocBook editor
WYSIWYG TEI editor
WYSIWYG XHTML editor
Visual XML Schema Editor
Logical Model View
Visual RelaxNG Schema Editor
XSLT Editor
XML Database Perspective
SVN Client
Archive Browser
Editing OOXML files
Comparing OOXML files
Archive Browser
Editing ODF files
ODF file templates
Comparing ODF files
A Custom Layout for Views
A Custom Layout for Editors
Print Preview
XSLT debugger perspective