Sources

http://en.wikipedia.org/wiki/OpenDocument_software might be a good start

http://www.opendocumentfellowship.com/resources/dev_tools is another source

http://opendocumentfellowship.com/applications: looks like they're doing the same ?

Legend

|| Stars || Description |

*****	Release this month
****	Release past 2 months or CVS activity past month
***	Release past 4 months or CVS activity past 2 months
**	Release past 6 months or CVS activity past 4 months
*	Release past 9 months or CVS activity past 6 months
+	Dead

Office Software

PDA

Stand-alone

Project	Version	OS	ODT	ODS	ODP	ODG	Activity
AbiWord (+plugin)	2.6.2	Win32,Linux,MacOSX,Solaris,BSD	R+W	-	-	-	*****
Gnumeric	1.8.2	Linux,Solaris,BSD	-	R+W ?	-	-	*****
Inkscape	0.46	Win32,Linux,MacOSX,Solaris,BSD	-	-	-	W	*****
KOffice	2.0alpha6	Linux,Solaris,BSD	R+W	R+W	R+W	R+W	*****
OpenOffice	2.4	Win32,Linux,MacOSX,Solaris,BSD	R+W	R+W	R+W	R+W	*****
Scribus	1.3.3.11	Win32,Linux,MacOSX,Solaris,BSD,OS/2	R	R	-	R+W	****

Note: Gnumeric site mentions supporting .sxc, and the manual still calls ODF "OASIS Open Office XML" (which was the original name, and was changed to OpenDocument in 2005).

OpenOffice wrappers

Project	Version	OS	ODT	ODS	ODP	ODG	Activity
JODconverter	2.2.1	Win32,Linux,MacOSX,Solaris,BSD	R+W	R+W	R+W	R+W	**

CMS / Wiki

Project	Version	OS	ODT	ODS	ODP	ODG	Activity
eZPublish + (OASIS Open Document Extension)	(2.0beta)	Win32,Linux,MacOSX,Solaris,BSD	R	R	R	R	(+)
eZPublish + (eZODF)	(2.0)	Win32,Linux,MacOSX,Solaris,BSD	R+W	-	-	-	*
Plone + (AROfficeTransforms)	(0.9.2)	Win32,Linux,MacOSX,Solaris,BSD	R	R	R	R	(***)
DokuWiki + (plugin:odt)	(20080507)	Win32,Linux,MacOSX,Solaris,BSD	W	-	-	-	*****

Libraries

.Net (C#)

Project	Version	ODT	ODS	ODP	ODG	Activity
ODF Toolkit AODL	1.3 beta	R+W	R+W		-	*

Java

Project	Version	ODT	ODS	ODP	ODG	Activity
jOpenDocument	1.0	R+W	R+W	R+W	R+W	*****
ODFDOM	0.6	R+W	R+W	?	R+W	*****
ODF Toolkit Odf4j					-	+

Perl

Project	Version	ODT	ODS	ODP	ODG	Activity
OpenDocument Connector	2.102	R+W	R+W	R+W	R+W	*****

PHP

Project	Version	ODT	ODS	ODP	ODG	Activity
OpenDocumentPHP	0.5.3					*
PHP Opendocument Library	0.02	W	W	-	-	+

Python

Project	Version	ODT	ODS	ODP	ODG	Activity
ODFPy	0.7	R+W	R+W	R+W	R+W	***
POD (Python Open Document)	0.2.0	W	-	-	-	****

Ruby

Project	Version	ODT	ODS	ODP	ODG	Activity
RubyODF	Alpha1					+

Smalltalk

Project	Version	ODT	ODS	ODP	ODG	Activity
OpenDocument						+

Converter

Project	Version	ODT	ODS	ODP	ODG	Activity
ODF Plugin	1.2	R+W	R+W	R+W	R+W	*****
OpenXML/ODF converter	1.1	R+W	R+W	R+W	R+W	****

Sun's ODF plugin isn't open source, but it's based upon the OO2.x code base