I would love an eReader forum, too. I read some of the threads on how to create books in eReader format, and my head is still spinning. It was easy to convert text files for the Palm because I could just convert the books into Palm doc format, and eReader or MobiPocket or iSilo (or iSoloMio) or whatever could read them. But eReader format itself was another thing entirely.
Then again, if epub works well, maybe I could learn to convert to that... But I'm a heretic -- I haven't read anything in epub yet!