All of them look great on both Sony’s reader devices and nook; I know this. It’s when you start talking about portable devices that it gets strange.
I’ve been checking with iBooks and Stanza on my iPhone. Neither seems to support style-based pagebreaks, which is quite simply annoying for the front matter of books. It also makes things difficult when there are full-page images.
Worst are full-page images – usually for covers, but also maps. Stanza seems to hate them. Period. No matter how I encode things – if it’s a large image it will not scale. iBooks seems to scale some images, and not others. Some go off the screen, some
So this morning, before and after my panels, I’ll be trying to tackle this problem until my laptop’s battery gives out. When I find a good solution – at least one that’s supported by iBooks consistently – then I’ll let you all know here.