Marcin Stachniuk just published the first version of DataWander. The application migrates data from an Oracle relational database to db4o.

The system currently maps tables to objects 1:1 (but will later change this mechanism to e.g. map foreign keys in tables to references in
classes). So far it only works in one direction but will later support migration of data from db4o to a relational database.

If you have an Oracle database running, please help Marcin test the app and report here in the comments section (suggestions or bug reports are welcome

Thanks Marcin!