I love Apple products but Google Now is definitely currently out-classing Apple. This seems like a much needed catch-up in that space.
I don't know about that. While I like what Google Now tries to accomplish by aniticipating my needs, I think it's a WIP and find Siri to be far more useful and smarter today. For example, I just tried setting an appointment for tomorrow at 10am with Google Now but it thought I meant Saturday because it's a few minutes past midnight here. Siri is smart enough to ask if I meant 10am Friday or 10am Saturday. Also, when I told Google Now to "cancel", it brought up the definition of cancel. Siri would've canceled the appointment I just made.
The superior intelligence and usefulness of Siri extend to other things, like looking for movies, restaurants, setting reminders, navigation, reading/replying to texts, etc. making Siri more useful for my every day needs.
IMO, the main advantage of Google Now over Siri is its speed and dependability. I'm assuming Apple's new data centers in NV and OR, once they go live, will address that issue.