7.1 Alpha1 is available. There are already quite a few features in there too --
A couple of things to highlight, the Teiid rar files no longer have version numbers so
that -ds.xml don't have to change between releases. Also you can get query plan
information from any client tool with the show statement:
set showplan on
select ... from ...
The show plan statement will return a result set containing the plan text/xml/debug log.
See the release notes and updated docs in the kit for all the details.