Disruptive technologies like touch sensitive screens and smart glass everywhere will be one of the larger competitive issues for Apple in the not-too-distant future. However, purchasing a smart glass manufacturer -- perhaps even Corning itself-- would give Apple a competitive advantage for an "iOS everywhere" type approach.
Buying a base product manufacturer like Corning wouldn't be outside the realm of what Apple occasionally does. Acquiring a glass manufacturer -- specifically a smart glass manufacturer -- would be right in line with Apple's history and offer the potential for a strategic future. Our favorite tech company could continue its fully integrated approach to extending the Apple ecosystem everywhere.
Corning, especially, would be a great choice. Apple’s iPads and iPhones could be more impact resistant by using the company's Gorilla glass. The company's Willow Glass could enable even thinner Mac displays.