The first part is true, and the second part is not. Apple has long been testingon the . In fact, Apple employees are currently running around with Siri on their 4. In addition, Apple has even left Siri references in the latest 5.0.1 beta for the iPhone 4 – and even the and .
Folks,don’t expect Apple itself will bring Siri to your iPhone 4. The site given out 3 reasons that Apple just make Siri running onexclusively:
1,Only for newest phone,Apple spent millions of dollars on Siri ‘s development, how gonna give it for free upgrade?
2,is a more closed control group for the Siri “beta” than if Apple were to open Siri to the tens of millions of iPhone 4 customers.
3,The Future. An A4 Single-core processor cannot handle Siri.
So, Apple will not bring Siri to the iPhone 4.,you are not going to get it legally. The only way you can get Siri in your iPhone 4 is hacked to fully run on it.