The X1 is probably the most referenced laptop by commenters on Ultrabook News so I’m sure many of you will be excited to know that it’s being updated and will be offered, alongside the original X1, as the Lenovo Thinkpad X1 Carbon. This isn’t just an Ivy Bridge CPU/GPU update, it’s a full re-work that brings it down to under 3lbs in weight. That’s about 1.35 KG, for a 14” Ultrabook.