|Eliza / GPL|
What a great achievement :). The original program from 1964 has finally arrived on smartphones. And it's like the original program. It doesn't make any sense.
But like most Apple stuff, it's just a polished copy of something.
So if you want the even more original stuff, you can grab the Eliza-App from the Android-Market and use it with the integrated Voice Recognition on your Android phone (which is integrated and working for over 1 Year now).
Just don't make one of them your personal assistant. It could be really strange. Talking to your phone in public and getting weird answers from Siri... ummm, I mean, ELIZA.