Apple is turning Siri into a next-level Artificial Intelligence

Was Siri the secret star of the World Wide Developer's Conference Keynote? At first blush, I'd say no. There was no moment where Apple CEO Tim Cook declared it the most important platform in Apple's domain. Cook and SVP of Software Engineering Craig Federighi never ticked off all the Siri updates at once. There was no "Siri summary" screen.