Yeah but they failed at that because Jobs wasn't there then
I just tried Jeannie and it works well, could do with some Apple polish to make it look better than a microphone - mash it with SpeakToit Assistant and it would be good, it even returned the sound of a cup and saucer so it can't be pre-programmed response for animals as you saw in the video
Also works for:
Jet Fighters
Foo fighters make a strange electro sound when asked what noise they make

when asked to play foo fighters music brought up youtube (don't have music on my phone)