Apple is facing technical and regulatory challenges ahead of its WWDC 2025 event.Key artificial-intelligence features promised by Apple last year have been delayed, while rivals like Google and Microsoft introduce new AI features.Courts in the U.S. and Europe are considering changes to Apple's App Store fees, and President Trump has threatened tariffs on Apple's iPhones.Apple's shares have declined over 40% this year, and the company is lagging behind Microsoft in AI-driven gains.