First thanks, for the info.
It's good to learn that iRiver has not abandoned the development of Story firmware and it has not reached the end of its product cycle (after less than half a year).
Anyway, I'd like to point out that word-wrapping doesn't work for TXT format, whether you saved it with CR and LF enabled or not. The twitter messages seem to imply that turning on CR/LR with MS Word would do the trick. Nah, it doesn't. TXT format just ain't working right.
Additionally DOC format is extremely poorly supported, if at all. In fact, I would say that DOC format is almost unusable with v1.71, unless you're willing to resize your word documents prior to copying it to Story. DOC text should be reflowable.
Last, PDF should be zoomable. Please, for the sake of reading comics.