Lenovo's new Yoga Book draws the eye like no other tablet or laptop available today. People aren't always sure what I'm reading my comics and or jotting down notes on, but they know it's fascinating, and tiny, and cool. With its capacitive touch keyboard that turns into a drawing tablet with the press of the button, the Yoga Book is absolutely the future of laptops and tablets and the blurred space in between. But Lenovo's thinnest laptop ever also has one major problem in that it only comes in a Windows and an Android flavour. Neither OS is ready for the future Lenovo's built.