These devices do not make sense with a document description statically designed for print.
This may be so from a "print" point of view, but devices work at least as well as the Adobe Reader, Preview, and similar software readers from a scaled graphic standpoint which meet my needs at this point in time.
These devices demand structure information and semantic information for navigation by search, and for reflowing and rendering of the layout.
The required structure information is contained in the source authoring application and is implemented as needed according to the user's final export format or intermediate file format and conversion work flow(s). Thus, once again, navigation in my PDF and AZW files are compatible with the target devices mentioned above. As to reflowing, a PDF file remains problematic as far as true reflowing is concerned -- especially where the content is "reflowed" (more of a rescale operation) to a fixed display area -- which is why such content must be output to a custom document size targeted specifically for the device and things like text outlining and background layers should be avoided. (Was, however, happy to discover that shadowing is reasonably well rendered even on Sony 8-level grayscale devices.) As to "searches," that is not something I require. Am, however, anxious to see how well freehand annotation is implemented on the Touch and Daily Edition readers when applied to PDF and/or ePUB files. (Never thought I would use this capability, but now would likely find this a handy feature for noting spelling and typographical errors in my test files.)
It's not a question of Pages, or QuarkXPress, or InDesign but of the underlying document description model.
I'm not sure, but it seems to me that you are primarily focused on an absolute "print" model and how it is implemented on hardware devices and disregarding other digital options now afforded by eBook authoring, eBook publishing, and eBook distribution via a growing number of services and commercial storefronts. While your comments are valid and should be considered in recommending authoring/publishing applications as originally requested here, not all potential authors may wish to limit themselves to a traditional "print" model be it in paper or electronic in medium.
UPDATE:
Scott, just received some additional information from iStudio. Have not really tested their $49 layout application as it lacks most of the text handling capabilities I have come to expect in Pages. Have, however, downloaded the 30-day trial app to check out its use as an alternative newsletter creation program. Unfortunately, it appears it will be 12 months plus before Bookbuilder is planed for release. According to their posted "Publisher Roadmap," it would seem that many of the features expected to be incorporated into Bookbuilder (targeted to sell for $149) will be prototyped in Publisher over this time frame (e.g., ePUB and RTF export alternatives to PDF which I am interested in testing). In short, it is unlikely that either of these applications will suit your current needs in their present form.
