I imagine it's more trying to gear for PDA (Personal Digital Assistant). If, instead of fumbling with a keyboard or swiping on my phone, I can simply talk naturally to tell my PDA to create an appointment, find a gas station, read the science news, etc. then that may be a beneficial piece of software. My question is always "Who pays for it?" My guess is that this kind of technology will be used as a new advertising platform. If I ask for a nearby restaurant or grocery store, it would make sense that companies could pay to have their products/services be the one my PDA recommends.