I am on vacation, so just two quick news items of note... drawn from Book Business Extra last week.
First post: The SONY Reader has agreed to adopt the IDPF .epub standard. This gives extra strength to that developing standard. Standards development is an important milestone in the emergence of new technologies. SONY is generally known more for proprietary formats, so this is an important step forward for the relatively new standard.
Second post: Harlequin is introducing "enhanced ebooks." Harlequin has been one of the most innovative players in the ebook space. With enhanced ebooks they will provide some interactivity to the e-book romance novel -- with links to additional information to information that enhances the book experience (maps, photos, commentary, etc.).