Just got my new 4S yesterday. Still exploring. Siri is kind of neat. The writers anticipated all kinds of amusing questions ("what's the meaning of life", "what are you wearing", etc etc). The coolest stuff, such as searching for locations or reminding you to do something when you get to the office, only work in the US! Boooo! I know it's only a Beta, but it still feels like Apple released this just a bit too early. Here in Japan everyone is amused because, when pronounced in katakana, Siri sounds like the Japanese word for butt.