Do people actually
use siri? The extent to which I've seen it used has been:
1) Making it say silly things about hiding dead bodies in ravines.
2) Trying to make it text things, only to give up and type the message by hand. Usually done while driving, and usually spanning the course of around a minute.
It's not even remotely close to something usable yet, at least not from what I've seen. Just look at how people use it, they don't even understand [or maybe they just don't like?] the interface for it!
Most people I see address it by name, like you would the computer on star trek. They hold down the button, and then say:
"Siri, where can I get a blah blah blah nearby?"
Which usually doesn't return a useful result. In this time I'm usually searching on google maps, and telling them the instructions before they've finished their attempt at an interaction.
You don't invoke the service by addressing it. The service was invoked by pressing the button.
Seriously I have yet to see a person who uses siri for something useful.