Ralph seems to enjoy keeping his work from the Amiga community. I'd love to have a couple GURU Roms for a few systems, but he seems to be willing to let that tidbit of work go the way of the dodo.
His attitude is kinda like (even though I didn't expect to make any money, I'm going to stick it to every member of the Amiga because one guy dissed me).
Maybe someone should make up a rumor that they cracked the Guru rom code so it could be written to a standard eeprom without having to use that goofy extra circuit board. See if he comes out the next day and says, "I was going to release a new batch of ROMS but someone pissed me off, so forget about it".