Another example. My wife had one of the dogs at the vet today and texted me asking what one of the supplements we give her is called and who makes it. I was driving. I asked Siri what the supplement I ordered from Amazon was and who made it. She found the information and I asked her to text the information to my wife. Worked perfectly.
Color me impressed.
On the not so impressive side, I often use Siri to set timers on my watch for various things... timing cooking a steak on the grill, something in the oven, etc. She's really slow to respond and set the timer, although she does seem to take the 5 to 10 seconds or so it takes her to respond into account in the timer itself.