Genetic Circuit Design
The really cool thing was posted by acedio in the comments: genetic circuit design
What these researchers have done is implemented genetic circuit design on an FPGA to create a circuit to light a light when someone says "go" into a microphone and turn it off when someone says "stop". Which is not really groundbreaking...but the way the genetic algorithm created the circuit is pretty amazing, it used what normal designers would consider unwanted characteristics of the circuit such as stray capacitance and inductance between components to "create" unavailable components out of logic gates, and because of this the researchers have no idea how it works!
Computers can now design circuits in ways that would be damned near impossible for humans to do, how cool is that??!
Deep thought here we come!