8. OpenOffice 4.0
This month the Apache Software Foundation released Open Office 4.0 for Linux, Mac OS X, Solaris and Windows, with revisions and improvements far too numerous to list here. Among the major enhancements is an adjustable and resizeable sidebar panel (shown) that's a result of IBM-contributed code. The sidebar can carry a multitude of property adjusters, including those for text alignment and appearance, page formatting, and graphic editing across suite modules. OpenOffice includes modules for word processing, spreadsheet, presentations and drawing, and it supports Microsoft, OpenDocument and other file formats.