Siri
Siri is a built-in "intelligent assistant" that enables Apple iPhone 4S users to speak natural language voice commands in order to operate the smartphone and its apps. Users can speak commands -- and receive audible confirmation from Siri -- to send messages, place calls, set reminders, operate iTunes and more.
Siri can work across multiple iPhone 4S apps as needed in order to accomplish its tasks. Siri also supports extended dictation, enabling users to have their words translated into text for use in e-mail and text messages, Facebook status updates, tweets, note-taking Web searching and similar operations.


