Saving in other formats. My take: This is the job of 10 million conversion programs that are already out there. Developer should focus on WORD PROCESSING features and maybe having a Linux version.
I'm especially interested in the mobi format and so are many others who self-publish through Kindle. I only know of a few converters, like Calibre, that mess up the formatting of the file during conversation - especially if there are graphics involved. There are others especially designed for ebook making but they are so difficult to learn how to use I've given up on them. It'd be fantastic to have a word processor which could convert their own files into accurate mobi documents even if they had the added complexity of designs and graphics.
Atlantis Word Processor
All the ideas and discussions