Last month we gave you a sneak peek at the enhanced eBook edition of Here on Earth: A Natural History of the Planet by Tim Flannery–a digital book that incorporates Twitter conversations into the app. Today, the book is on sale in the Apple App Store.

As you can see by the image embedded above (click to enlarge), the new eBook allows readers to take notes, copy text, and join Twitter conversations without ever leaving the digital text. Any Twitter reader can discuss the book at the #HereOnEarth hashtag, and the enhanced eBook will collect those conversations.

What do you think–are you ready to join Twitter conversations inside your eBook?  We caught up with Arcade Sunshine Media president Aziz Isham to find out more about the app and how other writers can use these new tools.

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