Lenovo's versatile ThinkPad Helix was one of the more impressive convertible laptops we saw at CES 2013, but there's some bad news for those holding out for its mooted February release date. Responding to a question on the company's Facebook page, Lenovo says that the Helix has been delayed and is now expected to arrive in March or April. Exactly when, however, is still unclear; according to the Facebook post, details will come "soon." We've reached out to Lenovo for comment and will let you know when we hear more.