I've used personal assistant like products before. But google now is the only one I keep going back to. Personal context is critical for a working personal assistant - you need to know the whereabout, the calendar, the habit, the preferences about everything. That's the power of Google streamline of products.
I do. They are the proverbial sheep in wolves clothing IMHO. It's why I choose not to use their products. Unlike many though, I have no issue with anyone else using their products. Google Now seem like a cool product, but for me the cost is far too high.
Don’t worry, your personal information is safe with Google. It’s a company that makes all of its profits from selling advertising, surely that has nothing to do with you.
Google better not be evil.