Mine signature. Everyone calls Wozniak the visionary and Jobs the CEO. Woz didn't tell Jobs to say any of this. And not to put our beloved Segway-mounted Santa Claus down, Woz is one of the most awesome dudes alive today. But looking back I think that Woz had great ideas... While Jobs had a (as yet, not fully realized) vision of what the future could be.
The culture in a lot of Asia (especially the South Pacific) just doesn't understand queuing or taking turns. Some places get it, Singapore to a degree, South Korea too... Japan is probably the world leader when it comes to being civilized about lines and waiting turns.
The iDevices that support Siri have a special chip and mic hardware with a unique noise-cancelling bit. Remember how they focused on the fact that the new MacBook Pro has a new mic with a dual receiver? I think they left the backdoor open for Siri there.