I agree with the vast majority of what you said, but Siri upending search seems incredibly pre-emptive.

I think Siri opens a lot of doors, but 90% of the Siri use I've seen (which I admit is somewhat anecdotal, but still) is hands-free texting & easter eggs ("Siri, where can I hide a body?")

Once Apple opens up Siri's functionality a bit more and makes it actually actionable ("Siri, pre-order my usual Chipotle burrito, please.") then things are going to go crazy.