ajaxWrite is a free word-processor that works with OS/2, can support Word documents.
The only "catch" is that, as the name suggests, "ajax", i.e. web-browser based and requires Javascript. It actually works okay if you have a broadband connection, but of course it depends on how many people are trying to connect at the same time.
Supposed to be designed for Firefox, but will work fine with Mozilla/Seamonkey. Can find it at:
http://www.ajaxwrite.com
They say a new application will be launched every week Wednesday on:
http://www.ajaxlaunch.com/
Source: OS2VOICE