The journey of one of the main feature of iPhone 4S, the Apple Siri, is not smooth at all.
Within days of it’s launch, the Siri system ran into problem with server issue and within week of its launch, the rival Microsoft demonstrated their version of the service with Microsoft Windows phone application Microsoft TellMe.
And now, add to that, a group of Android developers built a Siri like application for android platform within 8 hours of development time. The app, which is called Iris is now available to all via android market place.
http://blog.dexetra.com/a-day-when-siri-inspired-us-to-create-iris-fo

httpv://www.youtube.com/watch?v=vfcfckILNHo&feature=player_embedded