I was intrigued by a snippet of news this morning which stated that, for the first time, a significant book release had sold more in ebook than in print. HarperCollins announced that "I'd Know You Anywhere" by Laura Lippman has sold 4,739 ebooks, but just 4,000 in the print edition.All very interesting, but what does this mean? Has the moment really arrived? Are we at the beginning of the end for paper-based publishing? Before publishers start to sell off their printing presses, I think we should note that this is more a sign of growing consumer sophistication than it is...