I just came across some video sequences of kiteboarding in Hawaii and in Mexico in 1989 and 1988 respectively. The commentary in the Hawaiian video is interesting, full of speculation on what the future will bring. Well the future is here and this sport has grown as predicted in the sequence.
You will find the videos about halfway down the page under:
Kite Surfing in Hawaii 1989
Kite Surfing in Mexico 1988.