> Apple: Lets innovate here and add Siri > Google: Voice? 
  > To control a phone? Lets do that!

No, Apple acquired a company that was using DARPA-funded research from the SRI. Their software was in the iOS app store and on its way to Android/Blackberry when Apple bought them.

  > It seems that when Apple innovates, Google copies.

From the other point of view, Android is way ahead and iPhone is catching up slowly. A tray for multitasking? Notification pulldown from the top statusbar? Microphone-on-keyboard for dictation? All Android features, some from day one.

Face it: everyone takes good ideas from wherever they're found and builds on them. Treating Apple as if it's some divine font of innovation that everyone else can only copy is absurd.