The book features the feed, extensively annotated, plus an extensive epilogue about the story, and a foreword by Twitter co-founder Biz Stone. Added bonus: you don't have to scroll so much.
On June 6, I gave a 15-minute talk at the Personal Democracy Forum 2011, held at NYU's Skirball Center. It was an incredible opportunity to talk both about the feed, but also about some of the larger ramifications of real-time communications (and allowed a great opportunity to "beta test" parts of the epilogue of the book).