In addition to the OP's link to the cnn artical:
http://computer.howstuffworks.com/quantum-computer.htm
(sorry i'm too nub to create a proper linky)
There is some VERY cool info about how quantum computing might work and some of its potential uses. The issue becomes how to define a quantum system to turn input into output, but it seems if we ever figure it out, the atoms that make up the universe could be used to calculate an infinate amount of data.
Maybe even hold enough information to transport the trillions and trillions of atoms that make up the human body.
Howstuffworks.com is the WIN