This is awesome and a great candidate project for the PhoneDrone Android/RC interface board.
From the creator:
Recently, I have been refreshing my knowledge of Machine Learning by taking Andrew Ng's excellent Stanford Machine Learning course online. The lecture module on Neural Networks ends with an intriging motivating video of the ALVINN autonomous car driving itself along normal roads at CMU in the mid 90s.
I was inspired by this video to see what I could build myself over the course of a weekend.
Here's the hardware setup:
And how the neural network works: