Well, they finally did it. After tiptoeing painfully close to perfection with previous X1 Yoga and X1 Carbon designs, Lenovo has finally closed the gap with the new ThinkPad X1 Yoga OLED. It’s the nicest portable PC I’ve ever used. Design The ThinkPad X1 Yoga is very obviously a ThinkPad: It shares its traditional look and feel, durable carbon fiber hybrid construction, and superior keyboard and dual-pointing capabilities with other modern ThinkPads. That look is either modern and elegant or a bit frumpy, depending on your perspective. But I find it both attractive and classic, and in no need of any major changes. As a Yoga, however, the ThinkPad X1 Yoga also provides versatile transforming/4-in-1 capabilities too. That means you can swivel the screen around and use this device in other usage modes, like tablet, tent, and presentation. Combining all this with its multitouch and active pen functionality, and the X1 Yoga is one of the most versatile PCs ever made. (By comparison, the...