The classic video game Pong is implemented on a 5x7 LED screen worked into the dress. Two pixels on the right and left borders form the paddles; a single pixel is the "ball" moving back and forth.
At hip level, two retro-style game console controllers are plugged in to play the game. Every time a point is scored, the green score display at chest level blinks.
Update 22-Dec-2009: Take a look at a short video of the pong dress in action at a party.
End update.
Science fiction writers have, of course, led the way in thinking of ways that clothing can be so much more than mere fashion. In Philip K. Dick's 1977 novel A Scanner Darkly (recently released as a feature film), characters use a scramble suit to disguise themselves.
The scramble suit ... design consisted of a multifaceted quartz lens hooked up to a million and a half physiognomic fraction-representations of various people: men and women, children, with every variant encoded and then projected outward in all directions equally onto a superthin shroudlike membrane large enough to fit around an average human.
As the computer looped through its banks, it projected every conceivable eye color, hair color, shape and type of nose, formation of teeth, configuration of facial bone structure - the entire shroudlike membrane took on whatever physical characteristics were projected at any nanosecond, then switched to the next...
(Read more about PKD's scramble suit)
In recent years, futuristic clothing has moved from fiction to reality:
Technovelgy (that's tech-novel-gee!)
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Timeline, or see what's New.
Prairie Madness - And Space Sickness
'Space-sickness is one of the most unpleasant sensations that a human being can experience. Not all are subject to it...'
'Old People Began to Cross The Continent In Their Own Cars'
'It was a relief to enter one of the comfortable autos, whisper a direction down the tube, and just know that you would be taken to your destination in the quickest, safest, and cheapest manner.'
Starfall Manufacturing Drugs In Space
'The vast spinning sphere of Factory in the Sky loomed above and ahead of us, gleaming white against the unfathomable jet depths of surrounding space.'
The Solar Oberth Slingshot
'And if it doesn’t work,' inquired Lazarus, 'what does that make us? Sunspots?'
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.'