The first beta release of Alzabo is available at http://sourceforge.net/projects/alzabo
This beta includes a test suite (yeah!), experimental support for joins, bug fixes, and other stuff.
Alzabo does two things. First, it is a data modeller. Second, it is an RDBMS-OO mapper. Alzabo is in Perl.
The first alpha release of Alzabo, a Perl data modelling and RDBMS-OO mapper is available from the Alzabo project page (http://sourceforge.net/projects/alzabo).