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The existence of a front-facing camera may fairly be considered a “catch up” feature on iPhone 4. But the ability to use the front-facing camera to actually make video calls is first on the iPhone.

I once saw a guy standing in the subway, looking on the floor, gesticulating like crazy. I though the guy was either drunk or mentally ill.

As I left the subway, I realized that the guy was holding a phone in his hand. I could glimpse on the display and saw another person gesticulating.

Apparently the guy was deaf and was talking in sign language in a video chat. On a subway, which probably had no Wifi. That was in 2007.

I was amazed by technology (and felt like an idiot for the snap judgement).




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