This quote is interesting:
Siri, in short, is a frontal assault on Google’s core business -- advertiser supported search.
While I see the point behind the rest of the article, Google has always based their model on advertising. What will their revenue stream be for AI information? This question was brought to you by coca-cola, it's the real thing. I'm not quite sure what the answer is by comet cleanser, but I fear that it will scour your neves like brillo pads which produce a bright shine. Perhaps it will be some kind of embedded advertising, like Constant Contact the e-mail marketing company, but will it be unintrusive? I doubt it.