writes "It appears that Microsoft has finally caved. BetaNews is reporting that Microsoft is sponsoring an open source project to enable conversion between Open XML in Office 2007 and OpenDocument formats. The project, hosted on Sourceforge.net, made its initial release today. The Word 2007 conversion utility is expected to ship ship by the end of 2006, and similarly conversion utilities for Excel and PowerPoint are expected early next year."
See the announcement in Brian Jones' blog
(Jones is the Microsoft program manager responsible for Office file formats).