Scott,
I hope that all mfrs will provide all of codes for all of their products once ProntoEdit software is released. It only seems to make sense to me as their making codes available only helps to promote their products to people with Prontos or intentions of purchasing a Pronto.
Keep an eye out for code information availability via this site after the CES show 1/7-1/10/98. I think you'll find a solution to your problem.