Speak with your iPhone 4s(with Siri)

Talk to it like a human and you will get results from a smart person. The things that the Siri can tell you are diverse and will be incredibly helpful. And because it uses natural language instead of awkward preset commands, you can speak to it like a person, not a program. Siri on iPhone 4S lets you use your voice to send messages, schedule meetings, place phone calls, and more. Ask Siri to do things just by talking the way you talk. Siri understands what you say, knows what you mean, and even talks back. Siri is so easy to use and does so much, you’ll keep finding more and more ways to use it.

source:www.forcetoknow.com