Lenovo ThinkPad X1- thinnest ThinkPad with good performance Summary: Lenovo ThinkPad X1- MacBook Air competitor By James Kendrick | May 16, 2011 -- 13:44 GMT (06:44 PDT) Follow @jkendrick Previous | Next Image 1 of 34 ThinkPad X1- MacBook Air competitor. Read the full review at ZDNet Mobile News. Topics: Lenovo, Hardware, Laptops, Mobility Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.