Back in December, HarperCollins CEO Brian Murray noted that "...e-books enhanced with video, author interviews and social-networking applications" were a possibility. Just watch this demo from Sports Illustrated to get an idea of the potential. While consumers love the über-cheap prices being offered on the Kindle and the Nook, publishers would undoubtedly like to bump them up a little. These additional features will serve both the consumer and the publisher: Shoppers get a more interesting ebook experience, wrapped in Apple style, while publishers receive a bigger payday.
The Wall Street Journal notes that other publishers have been talking with Apple without offering any additional details. Now that we have a firm date for the tablet's introduction (probably, maybe) the rumors are going to swirl ever faster. Hold on to your seats.