I love Siri:
Here is the description from Wikipedia:
Siri (pronounced /ˈsɪri/) is an intelligent software assistant and knowledge navigator functioning as a personal assistant application for iOS. The application uses a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of web services. Apple claims that the software adapts to the user's individual preferences over time and personalizes results, as well as accomplishing tasks such as finding recommendations for nearby restaurants, or getting directions.Blah, blah, blah, blah. Who cares. The bottom line is my phone talks to me.
Siri was originally introduced as an iOS application available in the App Store. Siri was acquired by Apple Inc. on April 28, 2010.
Siri had announced that their software would be available for BlackBerry and for Android-powered phones, but all development efforts for non-Apple platforms were cancelled after Apple's purchase. Siri is now an integrated part of iOS 5, and available only on the iPhone 4S, launched on October 4, 2011.
There are some fun things people have found from asking her wacky questions, like these:
I love her. I talk to her all the time. We have a complicated relationship:
She is pretty good at finding restaurant or telling me when my uncle's birthday is, but she can't answer everything: