Apple CEO Tim Cook Justin Sullivan/Getty Images This post originally appeared in the Business Insider Today newsletter. You can sign up for Business Insider's daily newsletter here. When it comes to Apple's AI plans for Siri, it's better late than never. The tech giant gave an update Monday at its annual developers' conference about the AI-powered capabilities coming to its built-in assistant, writes BI's Brent D. Griffiths. You might be thinking to yourself, "Didn't Siri already get an AI mak