Like the Rocket e-book of 1999 (524 titles available!), it will surely draw chuckles a decade hence for its black-and-white display, its lack of built-in lighting, and the robotic intonation of the text-to-voice feature. But however the technology and marketplace evolve, Jeff Bezos has built a machine that marks a cultural revolution. The Kindle 2 signals that after a happy, 550-year union, reading and printing are getting separated. It tells us that printed books, the most important artifacts of human civilization, are going to join newspapers and magazines on the road to obsolescence.