Well Jon always said they don't talk about their private lives in public, but I don't think I've heard anything to suggest he'd be against talking about the history of the band in terms of just the band, not bringing their private lives into the stories. Could be good if they all have a hand in it, perhaps stories of things that happened in the studio, backstage at shows etc perhaps what they think of some of the albums and songs. I wouldn't be interested if it was too personal anyway - I like Bon Jovi as a band that makes music I enjoy, I don't really care to read about people I don't know. Never really a big fan of biographies.