Siri, IOS Intelligent Personal Assistant Answers, IPhone 4S

Re-launch
It was announced on October 4, 2011 that Siri will be included with the iPhone 4S. The new version of Siri is integrated into iOS, and offers conversational interaction with many applications, including reminders, weather, stocks, messaging, email, calendar, contacts, notes, music, clocks, web browser, Wolfram Alpha, and maps. Currently, Siri only supports English (US, UK, and Australia), German and French , and has limited functionality outside of the US .
After announcing that Siri would be included with the iPhone 4S, Apple removed the existing Siri app (which ran on all iPhone models) from the App Store.