Despite pre-ordering the iPhone 4s it wasn't because of Siri, after I'm already paranoid about looking stupid, I don't need to be seen talking into an inanimate object to add to that, but after reading this article I'm becoming more convinced.
http://www.cultofmac.com/122098/what’s-so-great-about-siri/
http://www.cultofmac.com/122098/what’s-so-great-about-siri/