KitKat features only on Nexus 5 (for now)

According to the official KitKat Android page, these are the new features that (for now) are only available for the Nexus 5:

  • Voice-activated Google Now from the homescreen
  • HDR+ feature for the camera
  • Low power audio playback
  • Touchscreen improvements (such as improved accuracy and faster response)
Any thoughts about this?