Apple has seemingly snatched three years worth of sapphire smartphone displays, further fueling sentiments that well see a more durable touch screen on the iPhone 6. During a recent conference call, Canonical CEO Mark Shuttleworth said Apple bought 4.5-inch sapphire displays that could have been used for the Ubuntu Edge smartphone. Apple just snapped up three years worth of the supply of sapphire screens from the company that we had engaged to make the screens for the Edge, Shuttleworth said according to Gigaom.