Originally Posted by JSWolf
Remember, MobiPocket is NOT just for the iLiad. It runs under Windows,on the forthcoming Cybook Gen3, PDAs, cell phones, etc. So a MobiPocket formatted file is good for more people then just iLiad owners. You PDF that you've formatted does look nice, but for the Cybook Gen3 or Sony Reader, it's not going to look so nice. Sometimes you do have to think of the greater good. And the greater good says that MobiPocket format is best overall for use with MobiPocket readers.
The greated good would be epub then. According to the latest posts on Mobipocket forums, it'll be supported by their software in the near future and we already know that it'll be supported by Adobe and Sony too.
That's the only format that should work everywhere in the near future. I don't think we can expect Mobipocket on a Sony device for the moment, or that we'll ever see LRF on a non-Sony device.
PDF can work everywhere if you don't store them, but generate them on the fly with the right formatting. Can be a pain in the a** if you have multiple devices yourself, but the format itself can work on a very large number of devices if you follow this rule.