A refresh of Apple’s flagship laptop, the MacBook Pro, likely will be the highlight of an event scheduled for this Thursday at the company’s headquarters in Cupertino, California. The update to its flagship MacBook line couldn’t come at a more critical time. “Apple has been under increasing pressure from Dell, Lenovo and others in this space and needs to up its game considerably lest it be accused of neglecting notebook users and customers,” said Charles King, principal analyst at Pund-IT.