Are you familiar with the Grammatical Framework [1]? It is a Haskell library and language for natural language parsing and translation -- If you need to do a lot of translation or string localization, you should take a look at it as much of the complexity has been addressed there.
Yes. Someone mentioned it to me in the Haskell IRC channel approximately a year ago when I was discussing some problems I had with my numerals package. I am not really in need to translation or string localization. The numerals package is merely a hobby project that got a bit out of hand :-)
That said, the numeral libraries for GF are somewhat limited (and/or somewhat undocumented) so there is probably a lot your experience and library could bring to that project.
I am interested in the ways the two projects could work together. Maybe they could check each other's results.