Yes you read it right ! Siri on iPhone 4 is few steps away from you. Here's an iOS developer called Steven Troughton-Smith who was managed to port Siri on iPhone 4. He post a demo video showing you Siri on iPhone 4 in action, let's check it out after the jump.
Steven is work individually, he doesn't work with iH8sn0w team. Steven was able to fully import Siri on iPhone 4 after installing Siri and Springboard files from iPhone 4S to iPhone 4.
I think you noticed what we noticed in this video. The iPhone 4 is running very slowly, so what is the problem ?
You may notice Siri and the iPhone 4 acting very sluggish in the above video. The issue here is not Siri, but is that a special GPU driver for iPhone 4 is needed; and it is obviously not included in the iPhone 4S binary cache – where the Siri files are located.But don't worry, here's another video from Steven which shows that the speed has been improved :
Anyway it may takes few days to get Siri on your hands. Will you buy iPhone 4S after porting Siri on iPhone 4?
Update 1: Siri will come to all devices running iOS 5 - Click Here.
Update 2: Siri connected to Apple's Servers successfully - Here's iPhone 4 and iPod Touch 4G Video - Click Here