Cupertino, California (CNN) -- The iPhone 4S may not look any different from its predecessor, but it is Apple's only model with a sort of robot living inside. Apple's new phone, which was announced on Tuesday to be sold in stores on October 14, will have a new function called Siri. The program lets people bark commands or ask questions to the phone, and it will provide an answer or ask follow-up questions in order to perform a given task. At the news conference, Phil Schiller, Apple's marketing executive, called Siri "the coolest feature of the new iPhone 4S," and the company is expected to advertise Siri heavily in its sales pitches.
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Apple's iPhone 4S will have a new voice-assistant feature called Siri
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Siri is based on a government-funded research program
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Apple acquired Siri in April 2010
Ask Siri to remind you to buy flowers for your wife at a certain time, and @placeholder may ask you to identify her in the phone's address book.