For a first cut, see the (somewhat stale) roadmap:
http://www.abisource.com/lxr/source/abi/docs/roadmap.html
Or, for a shorter list to choose from, every week we post a new POW to this
list:
http://www.abisource.com/mailinglists/abiword-dev/99/September/0097.html
AFAIK, the following POWs are all still unclaimed:
http://www.abisource.com/mailinglists/abiword-dev/99/September/0162.html
http://www.abisource.com/mailinglists/abiword-dev/99/October/0009.html
http://www.abisource.com/mailinglists/abiword-dev/99/October/0065.html
(Bob's working to get more of this information onto our website, but it'll
probably be a few days.)
Paul