Not all of the future possibilities of digital publishing are applicable to poetry. (This is speaking about the poetry book once finished, not about how that book could go through the process of publication. For more on the latter idea, see my post about a hypothetical model for a poetry publisher, wherein the publisher essentially works as an API for readers/consumers to create a poetry book based on their own criteria.) It is useful to trim down these speculative possibilities to look at how the ideal poetry ebook, with its particular requirements, might look (outside of present platforms or devices, although much would be possible within the EPUB3 spec.).
There is something funny going on with KF8 and multimedia, which we are still waiting on the Publishing Guidelines for. Mobi 7 supports audio & video tags, albeit only for display on the Kindle for iPad and iPhone. Kindlegen includes, in its sample code, a ‘multimedia’ edition of Jabberwocky, with an embedded mp3 of a reading of the poem. This gives a clue as to why poetry ebook enthusiasts such as myself are interested in this: being able to incorporate recordings of readings is very attractive for poems, and is likely to be popular. This is why it is disappointing that KF8, with its heralded “HTML5 support“, has quietly dumped audio & video. It makes the declaration of HTML5 support somewhat odd, as there aren’t, after all, that many new elements in HTML5 other than multimedia. If Amazon, with the Kindle Fire & presumably more tablets in the future, intends on sticking with web standards for its books rather than moving towards apps, it needs to buck up a bit.
There is a good post on general KF8 frustration from Shoto Press’ blog, including the revelation that “Kindle Format 8 simply doesn’t exist yet”.
Edit: The Digital Reader has more on KF8, including confirmation that audio & video won’t be supported, and “there’s no indication of any plans to add them”.