As we’ve told you previously, Siri is on its way to the iPhone 4 and we even updated on the post to let you know that a successful port has been achieved by Steve Troughton-Smith.

To further tease iPhone 4 owners, there’s a video of Siri in action on the last year Apple smartphone. Developer Troughton-Smith is working exclusively with the good people over at 9to5mac in order to port the iPhone 4S Siri voice command system to the iPhone 4. If you’re interested in the technical details, hit up the source link or lean back and watch the videos below (on the first one Siri is a bit sluggish but the second looks good).