After three years development OpenOffice.org has introduced OpenOffice 3.0, the most advances version yet of its completely free Microsoft Office competitor.

OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common platforms.

This version promises a host of new features including native support for Mac OS X without need of the X11 windowing software.

OpenOffice.org integrates well with the Mac OS X accessibility APIs, and so offers better accessibility support than some other Mac OS X applications. The software is also extremely stable and fast-performing the developers said, adding, "Some Mac users have switched to OpenOffice.org just because of its extremely good stability."

OpenDocument Format (ODF) 1.2 support, Office 2007 import filters, excellent charting and drawing tools, collaborative features and enhanced XML support and updated XSLT based filters round up this impressive release.

OpenOffice is available for download here.