Can Apple fix Siri?

Apple is set to unveil a new and improved Siri, the personal digital assistant, and widen its reach, to Mac computers and third-party apps. LOS ANGELES - Once again, Apple wants us to believe that Siri can be ready for prime time finally, with a more chatty, robust personal digital assistant. You know, unlike the one who debuted in 2011 as a novelty, and has been touted every year since as new and improved. At Apple's Worldwide Developer's Conference, which begins Monday, Apple is expected to tout the better Siriand open her up to third-party developers, to make it available to say, apps like Uber and Airbnb for voice-activated booking of cars and overnight stays. But do we believe that Apple is really up for the task, and can succeed, when the company has let us down so many times before?