1)   ObjectDB for Java/JDO - Free Edition 1.00
<a href='http://www.objectdb.com'>ObjectDB for Java/JDO</a> is a powerful yet compact Object Database for Java written entirely in Java. <a href='http://www.objectdb.com/database/jdo/free-download/'>Free Download</a> is available.

 2)   ObjectMapper .NET 2.0.2307.0
It's a .NET Persistence Framework for Oracle, Microsoft SQL Server, Microsoft Access and XML Files.

 3)   Habanero Pro v1.1
Habanero is an object-relational mapping (ORM) architecture for .Net that maps object-oriented code to relational databases. It persists data to and from the database and generates user interfaces to edit the object's properties.

 4)   .netTiers 2.0
.netTiers 2.0 solidifies the .netTiers application framework presence in both, the ORM and Application Generation Markets.