MIT Media Lab is going to try to develop a $100 laptop, running Linux OS.
If such a breakthrough occurs, it could simply mean that many students in LEDCs will have access to computers, and this will change the equation on the great digital divide between MEDCs and LEDCs.
According to MIT Media Lab, China itself has 220 million students. Assuming that the profit resulting from such a laptop sale is US$10, then a million students buying the laptop will certainly make a remarkable huge profit. Of course, this is without taking into consideration research, development and marketing costs.
For more info, check out http://laptop.media.mit.edu/