I got this yesterday from both Assaf Spanier and Guy Rapoprt: Google is announcing the release of their TensorFlow library. Main use case is deep learning. With a python interface, multiple GPUs are supported.
A recent benchmark shows that TensorFlow is rather slow compared to Torch.
I have invited Rajat Monga from Google to give a talk at our Data Science Summit July 12 in SF, and he kindly complied. We are looking forward for Rajat's talk!