Here's a firmware dump from the D20 on Skydrive (16MB, 100b):
http://sdrv.ms/XuOKqZI'm hugely interested in getting CHDK ported to this camera; I'd definitely spend any time necessary testing builds, and if no developer plans to own and port to this model, I'll even crack it open and try it myself. Only problem is I'm not a developer and haven't done any coding of any sort in over 10 years (excluding basic script modification), so any help, pointers to good tools, sample ports that would be similar, etc., would be terribly helpful, over and above what I've already read "Adding support for a new camera."
Also: anyone have any luck getting vers.req or ver.req working on the camera?