Maul Publisher version 3.16a has
been released (1/9/2010). Maul Publisher is "the world's first
professional desktop publisher for OS/2 Warp." It will automatically
take care of page numbering in folding booklets, reversal of margins
for facing pages, page numbering offsets where you don't want to start
from page one, reversal of margins for top bound booklets and top
folding booklets, centering margins on printers with odd margins, and
multiway folding sheets and maps. There is a language translation toolkit, so that anyone interested can provide translations for their native languages. There is also a mailing list. You can find the latest version on Hobbes.
Source: OS/2 Warp News and Rumors