I didn't know it wasn't available in the US, that's rather silly. I wonder why they don't allow it? They have Google in almost every country, why not Google Now? I'm sure they'll implement it at some point.
Well it is available but it's quite pointless because the only thing that's working is the Maps and the Google voice search but there, the woman doesn't even talk back. Yeah, but it's always like that, at first Google only releases it in the US and a few months after in Europe and Asia.