I've been testing Siri on my iPhone 5 and some of the questions I have been asking it, there doesn't seem to be a very clever response??! As a wild example, I asked Siri, 'What is the meaning of life ?' It responded that it wasn't able to answer a question like that!!! I have seen other instances (on the web) where if Siri was asked this same question, it would reply with the answer being '42' ( a nod to The Hitch Hikers Guide to the Galaxy). Also, as I've never had Siri before (coming from an iPhone 4), I thought Siri had a female voice, or is this only for the U.S. users?!!