They're getting ever more practical, these Kinect hacks. Two days ago it was creating 3D models in free-space, today it's letting the blind see. Well, not really see, but better navigate through and stay informed about their environment, at least. A Kinect is attached to a helmet and connected to a backpack-mounted Dell laptop. Also connected to the laptop is an Ardunio-controlled belt that has three separate regions of vibration and a
