The demo isn't a virtual assistant. Its a glorified search engine with API integration and voice recognition. My vision of a virtual assistant is that you would be able to say: "Book dinner with Ross and David next week", and the only other interactions you have with the agent are "You're going to that Indian you and Ross like on Tuesday at 7" or "Can't be done, how about Monday the week after?", and possibly a messa…
Keep in mind everything you saw in the demo video was from 2008! That's 3 years ago, decades in tech. Given the time and resources Apple has undoubtedly provided the team since then, I think we should all be expecting much greater than that demo.
I don't recall any awesome new AI-related technologies in the last 3 years (slightly improved google translate/voice? bit better wolfram alpha?) while I can think of half a dozen new databases.