Andrea Bernardi, from OSDrawer, wrote me a couple of days ago (sorry for taking so long Andrea) about the AbiWord port project hosted there, and its progress. As of July 5th, there's a pre-alpha build available for everyone to download and try for themselves. This project was started by the ZETA team and has since moved to OSDrawer, where it's been making good progress, as you'll be able to see from the screenshots below. When this becomes fully usable, it'll help fill a blank niche for Haiku. Great work.
P.S.: Thanks Dave for the e-mail about this as well :)