If you could get rid of the keyboard on your laptop and replace it with a second tablet-like display, would you do it? In other words, would you prefer to work with two screens, Nintendo DS-style, instead of just one, like the MacBook-toting plebes of the world? Before you answer either way, you should spend some time with Yoga Book C930, a triumphantly pointless piece of technology that stands before the world with its fists on its hips and proudly proclaims, "We did it because we can.