Reed Albergotti got the scoop on Duffy’s hiring for The Information. From their paywalled story:
At first glance, Mr. Duffy seems like an unlikely candidate to
become part of Apple’s vast corporate machinery. Even by Silicon
Valley standards, where eccentricity is a virtue, Mr. Duffy is an
individual. After leaving Nest, he embraced aeronautics with a
passion, becoming an expert helicopter pilot, flying old fighter
jets and taking a plane trip around the world, all the while
considering his next startup idea.
People who know Mr. Duffy, but weren’t aware that he had joined
Apple, expressed surprise. They had been sure Mr. Duffy would
found a new company, aiming for his second blockbuster.
Must be an interesting gig.