Sphero, the Smartphone-Controlled Robotic Cat Toy by Orbotix

Sphero is a robotic ball that you can control with your smartphone or with games that are downloadable on any iOS or Android device. Sphero comes with built-in LEDs, allowing you to change the colour of your robo-ball depending on your mood. The plan is to also develop augmented reality apps, which supplement the real world robot ball with augmented reality obstacles or gaming elements — for example picture Sphere as a wrecking ball crushing virtual objects in your sitting room.
+Orbotix