I wanted to learn how to create a calendar event but didn't quite know the syntax that Siri would accept. So, I asked Siri "how do I create a calendar event". Siri asked me when the event was, I gave Siri the date and time, and Siri created the event perfectly. I had expected to ask how to do it, receive instructions and then have to ask to have the event created but Siri killed two birds with one stone. I had a friend standing next to me during all of this and her jaw dropped when Siri finished creating the event. She doesn't have a mobile phone but commented that she needs to visit a carrier and look at iPhones.
Siri keeps amazing me