UPDATE- The next generation iPhone 4S will literally BLOW your mind!!! Siri on iPhone 4S lets you use your voice to do all sorts of crazy stuff and more. Ask Siri to do things just by talking the way you talk, thats how she likes it. Siri understands what you say, knows what you mean, and even talks back, but thats not all she does. Siri is so easy to use and does so much, youll keep finding more and more ways to use her. I promise.