Rare have posted 3 Viva Piņata vs. Killer Instinct Vision Cards for use in Viva Piņata. All you have to do is either print out a Piņata Vision card and hold it up to your LIVE Vision camera, or point the camera at the card on the screen.
These cards will undoubtedly fuel the already existing rumours that Rare is working on Killer Instinct 3. No doubt with things such as a Piņata secret character or Piņata themed level -- which might not be too bad.
We wait and see.