iTunes 9.1 to be released with iPad, contains eBook support, automatic bitrate conversion?

Macrumors reports that iTunes 9.1 will be released alongside the iPad and will include a number of enhancements including:

• ‘Audiobooks’ section will now be ‘Books’ and contain all Book content: audio, eBook, etc compatible with the given device (iPod, iPhone, iPad)
• Genius Mixes will include songs that go great together, “users will have more control over Genius Mixes, including the ability to rename mixes and rearrange them by dragging. Users will also be able to delete Genius Mixes by right clicking on them. Genius Mixes will also reportedly be available as sources for the iTunes DJ shuffle feature.”
• Support to automattically update songs to 128-bit AAC – like the Shuffle currently does – to save space
• It will have tweaked summary panes (including a move of the “Check for Update” and “Restore” buttons to the left side of the pane)

It will be interesting to see how Apple organizes its Books section because there are so many confusing things going on here with iBookStore, Amazon’s Kindle Store, Audible, third party book apps, etc.