This talk gets fairly technical in spots (the main audience was Google engineers) but mostly it's about New Devices plus Building Community plus Social empowerment.
It introduces a platform that aims to make advanced robotics simpler. Currently, 3D printers are doing fairly straightforward predetermined actions, and micro-controllers can handle this level of interaction. But why shouldn't a more advanced printer have an accelerometer to notice when it is jostled, or even a camera to see exactly where a part moved to and continue printing it correctly?