Asus recently started adding touchscreens to its Zenbook line of ultrabooks. Now it looks like the largest member of the Zenbook family, the 15.6 inch Zenbook U500VZ is getting the touchscreen… err, touch. Engadget noticed that a new Asus Zenbook Touch U500VZ showed up on the Asus website recently. The notebook measures less than 0.8 […]