The teardown [Reviews Teardown]

THE BIG NEWS about the new generation of MacBook Air laptops, announced at Apple´s Worldwide Developer Conference in June, concerned battery life. The 13in model will now offer 12 hours of operation against seven for the 2012 version; the 11in model offers nine hours against a previous five. That these are the ´highlight´ upgrades may show Apple attacking a market that Steve Jobs resisted during his lifetime: the traveling businessman.