While numerous games let you play on your iPhone or
Just as Nintendo used "
The game takes advantage of the iPhone's accelerometer and gyroscope to mirror when you swing your iPhone in the game. It then uses Apple's AirPlay technology to send the gameplay to your Apple TV, effectively turning it into a console without requiring the installation of software on Apple's set-top box.
We expect to see more titles take advantage of AirPlay functionality with the arrival of iOS 7. Apple has shown that it's taking gaming on the platform seriously, integrating tools into the new version of its iPhone and iPad software that make it easier for game developers to work with dedicated controllers similar to those used by the Xbox or PlayStation.
Here's a video demonstrating Motion Tennis: