A very amazing application – Bill Gates’ quote on the UJAM frontpage says is all:

“And make no mistake, there will be great applications of all kinds on the Internet – much better and far more plentiful than the ones available today. Many of tomorrow’s net applications will be purely for fun, as they are today. … You might hum a little tune of your own into a microphone and then play it back to hear what it could sound like if it were orchestrated or performed by a rock group.” – Bill Gates – The Road Ahead, 1996

It seems to become reality very soon:

Visit UJAM.com.
Watch UJAM demos on YouTube.