Instead of using a display comprising a number of separate layers, Apple could use in-cell touch display technology, according to a Friday report from Digitimes.

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This is what New York's Metropolitan Transportation Authority found after it began installing digital clocks to display the number of minutes before the next subway train would arrive on the platform.

WSJ: The Wait-Time Misery Index

But the large number of UAVs on display illustrates clearly that China is investing considerable time and money to develop drone technology, and is actively promoting its products on the international market.

WSJ: China's Drones Raise Eyebrows at Air Show