I don't think it is about the technology (improving voice control) because as you can see in the video the speech recognition is from Nuance. My guess is that

I don't think it is about the technology (improving voice control) because as you can see in the video the speech recognition is from Nuance. My guess is that it is about the integration of all these webservices and APIs and the agent behind it. There is some research going on at Stanford about this, here is a presentation http://logic.stanford.edu/talks/Wizard/ http://logic.stanford.edu/talks/Wizard/