Here's a lightvector painting of the wearable wristwatch Linux videoconferencing system using SFree86, as featured in Linux Journal and demonstrated live at various venues including ISSCC 2000. (See also en:lightvector)
Shown on the 640x480 screen is UNIX "CAL", as well as transparent "oclock" and live video using PTP (Picture Transfer Protocol), which includes the idea of using one packet for each picture in a wirelessly transmitted video editing stream.
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