Researchers at the University of Oslo have developed a computer that evolves on its own using genetic algorithms to boost performance. See?
What their hardware does is par up "genes" in the hardware to find the hardware design that is the most effective to accomplish the tasks at hand. Just like in the real world, it can take 20 to 30 thousand generations before the system finds the perfect design to solve the problem, but this will happen in just a few seconds compared with the 8-900,000 years it took humans to go through the same number of generations.
Neat. Who knows how many practical applications this will have, but the idea of a computer evolving on its own to do what it needs to do is both cool and kind of terrifying.