GNU Gneural Network
I agree with the general motivation that having too much AI research in the hands of software companies who keep it proprietary harms transparency and progress. But there is already a <i>lot</i> of neural-network free software, so why another package? For example, these widely used packages are free software, and seemingly more featureful: <a href="http://torch.ch/" rel="nofollow">http://torch.ch/</a>, <a href="http://www.deeplearning.net/software/theano/" rel="nofollow">http://www.deeplearning.net/software/theano/</a>, <a href="http://pybrain.org/" rel="nofollow">http://pybrain.org/</a>, <a href="https://www.tensorflow.org/" rel="nofollow">https://www.tensorflow.org/</a>, <a href="http://leenissen.dk/fann/wp/" rel="nofollow">http://leenissen.dk/fann/wp/</a>, <a href="http://chainer.org/" rel="nofollow">http://chainer.org/</a>