Teiid Designer 7.6 Final is now available.
This release focused on improved usability and includes a new XML file source importer, a relational XML model importer and a new model extension properties framework.
For more details check out | Teiid Designer 7.6 What's New | Release notes | Download
.. and read about it: http://teiid.blogspot.com/2011/12/teiid-designer-76-final-released.html
Teiid Designer Team