Object Database Management System for Visual Smalltalk 3.1, Dolphin Smalltalk, VisualAge Smalltalk, VisualWorks Smalltalk and Squeak.
Its licensed under the MIT License
Download the 2.7, 2.8 and 2.9 version port from the Stephen Pope's site ftp://ftp.create.ucsb.edu/pub/stp/OODB/