I've been letting "Google Now" do it's thing. Not really using it much as far as voice commands like Siri yet, but I am keeping an eye on what cards it likes to show.

Initially it showed local weather. Ok, thats handy, swipe from the bottom up to see it, similar to iOS having weather in the swipe from the top notification center. Today at work, it decided to also add a traffic widget to my home. What is slightly odd is that it just decided my home was at a spot, possibly based on the hours I'm there. It didn't get the address exactly right, so it didn't pull it from the one place Google knows this (my credit card billing address). So slightly creeped out, but also intrigued. (I think this sums up my feeling for many Google things