Open Source ERP product from the company formally known as OpenMFG, now xTuple. In July of 2007, OpenMFG released PostBooks as a subset of the original application, targeted at those companies that were either light manufacturing or non-manufacturing. Postbooks is an Fully Open Source Software product, available today via SourceForge (). PostBooks is a mature, complete ERP solution that utilizes widely used Open Source technologies including the PostgreSQL database ([]) and the Qt C++ development environment from Trolltech ([www.trolltech.com]). PostBooks shares a code base with the OpenMFG product which allows for customers of the PostBooks product to upgrade to the OpenMFG, should they need the more advanced manufacturing functionality.