Evolutionary algorithms and analog electronic circuits

I've been working for a while on a program that automatically generates analog electronic circuits using evolutionary algorithms. It's still very much a work in progress, but I've used it to generate some useful circuits. Current workings of the program is as follows: Programmer decides a goal function, possible constraints, simulation type(AC, DC, Transient), number of nodes and types and values of the components available.

http://pulse.me/s/b3FD2