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.
What you say is correct, but what I was trying to say (you may disagree) is that SIRI was a big jump into mobile search, and that it is a bigger move into mobile search than google's hardware projects have been in competing with Apple.
SIRI is still in the early stages and would benefit a great deal from becoming more of an App platform, but I think that is going to take some time due to the nature of how SIRI works.
As a 'UI', SIRI was pretty cool, but if you compare SIRI on an Apple device with Google Now on an Apple device, both of them use Google to do the 'search' part except that Google Now's integration with the search backend gives it more visibility in what you are trying to find.
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.