When Apple first demonstrated Siri at the iPhone 4S launch a couple of weeks ago, we were slightly confused. Was this a new feature of iOS 5, or something exclusive to the iPhone 4S? Of course, turns out it was the latter.
Rumour is that the iPhone 4S’ dual-core A5 processor is essential in order for Siri to function, but developer Steven Troughton-Smith – in conjunction with 9to5mac – has punched that theory right in the gob.
Steven has successfully managed to port Siri from the iPhone 4S to the iPhone 4. Siri recognises voice commands, however Apple’s servers won’t authenticate commands from iPhone 4 hardware.
It’s not quite fully operational, but 9to5mac says Troughton-Smith is still beavering away to improve the port.
In the meantime, you can check out Siri running on an iPhone 4 in this YouTube video. You’ll notice the iPhone 4 is a little sluggish. 9to5mac explains that that’s due to a special GPU driver installed on the iPhone 4 unit.