Can siri work on iPhone 4?
No, Siri is a program (not an app) that is installed into the iphone 4s. The iphone 4 doesn't have this program therefore Siri cannot and never will be able to work on the iphone 4.
How do you get Siri to work on the iPhone 4S?
There are two ways one is to put it to your ear like you are making a call and the other is holding the home button
Does SIRI on the iPhone actually work?
Yes but only on the iphone 4s!! it is brilliant :)
Will siri work for the iPhone 4S read your text messages out to you?
Yes it does work, Siri even talks to you.
Is Siri on iPhone 4S 8GB?
Yes, siri is avalible on any iPhone 4s