Which product design innovation did Corning first introduce in 2007 that would later become a standard feature in virtually all smartphones and tablets?

Throughout history, certain product design innovations have revolutionized how we interact with everyday objects. These breakthroughs often seemed simple in hindsight but required extraordinary vision and persistence from their creators. This trivia question focuses on a groundbreaking design innovation that transformed user experience and set new standards for intuitive interaction in consumer technology. Test your knowledge of pivotal moments in product design history!

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Gorilla Glass - chemically strengthened glass designed to be thin, light and damage resistant
Haptic feedback - subtle vibrations that create the sensation of pressing physical buttons
Capacitive touchscreen - the technology that allows screens to respond to finger touch without pressure
Oleophobic coating - the fingerprint-resistant surface treatment for screens