Hmm... clothes that light up. I can think of some applications, prosaic though they are: joggers, worker visibility, night time visibility, things of that nature. But is this going to be bright enough, or is this just a flash in the lapel? Goofy clothes that light up designs will sell, no doubt of that, but I for one don't care to see any more obscene messages on t-shirts, especially not messages that flash in colors.
@Bob Lacovara I had the same thought while reading the article, but I have to admit it would be interesting to watch my child wearing Yankees baby clothes with LED lighting. Philips came lately with a lot of interesting ideas and their idea to design LED lighting into clothes will surely create a sensation.