Apple was among the first to release a digital assistant when it introduced Siri in 2011.It has struggled to capitalize on the headstart it had.Fresh delays in upgrading Siri have set Apple back at a time when AI assistants are the rage.It was 2011. The newest iPhone on the block was the 4s. And Apple was raring to introduce the world to a major acquisition it had been readying for over a year: Siri. Bought for an undisclosed sum, the "intelligent assistant" meant Apple was among the first to show smartpho ...