Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Siri running on iPod touch 4G & iPhone 4 [Video] –
iPhone hackers chpwn and Steve Troughton have just released this video which shows Siri running on a iPod Touch 4G. The video does add some proof to there statement but still others are calling this a fake. We believe it is true but do not build your hopes up just yet as both hackers have said they have no plans to publicly release the port. In the video description they did say
Once there is a public jailbreak for the iPhone 4S, this should become somewhat easier to distribute. No ETAs there, though: I have no clue when that will be.