Apple's Tim Cook arrived at the Allen & Co conference on Tuesday.
One customer got to speak with "a very special guest" about upgrading their iPhone: CEO Tim Cook.
  • It's not everyday you see a CEO take a customer service call.
  • Apple's Tim Cook helped a caller with an iPhone decision during a "CBS Sunday Morning" interview.
  • You guys thought I'd screw it up," he jokingly told onlooking Apple employees after the call.

It's not everyday that the CEO of a Fortune 500 company works the customer service line — even if it is just for a PR stunt.