Lenovo ThinkPad X1 Carbon Touch review: one of our favorite Ultrabooks gets a touchscreen

When Lenovo came out with the ThinkPad X1 Carbon, it seemed like precisely the sort of thing ThinkPad fans had been waiting for: an ultraportable with fast performance, a crisp 1,600 x 900 screen and, of course, one well-engineered keyboard. In fact, we deemed it one of our favorite Ultrabooks -- not just for businesspeople, but for everyone. The thing is, it arrived just before Windows 8 went on sale, which means four months after its release it's already a bit outdated. Enter the ThinkPad X1 C...