There’s a demo of a Raspberry Pi here:
The device comes in two models. $25 gets you a small cheap computer without networking and $35 gets you a small cheap computer with networking. Once networked the uses are only limited by imagination.
see more at RaspberryPI.org
I think that when the cost of the computer is so much less than the cost of the peripheral devices attached to it, we are “there”, now. This should make IT available to a few billion more people and serve the stated purpose for that organization, inspiring innovation. I can see entrepreneurs all over the world running with things like this, making a little money per machine and closing the digital divide.