Apple has reportedly begun pulling engineers off OS X 10.9 in order to make sure iOS 7 ships in a timely manner, according to Daring Fireball's John Gruber. Gruber made the comments in a Branch conversation with a number of other Apple pundits on Tuesday evening. That conversation also included comments from iMore's Rene Ritchie about Jony Ive's new involvement in iOS and other gossip about what could be coming down the line from Apple. "What I've heard: iOS 7 is running behind, and engineers have been pulled from OS X 10.9 to work on it," Gruber wrote.