When we look back to the 1960s incarnation of the Dick Tracy comic strip, we find one gadget that defined the technology of the future: the video communicator. While Tracy had sported the iconic two-way wrist radio since the 1940s, he and his police force were upgraded to video in 1964, and now reality has finally caught up. We now have very small portable devices that let us watch streaming video, video clips, or even each other as we converse. Two applications demonstrate how far we've come.
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