Meet the LocoRobo: an educational robot powered using Atmel AVR processors with enough power to keep your kids entertained. It has a built-in Bluetooth transceiver, allowing your kids to use smartphones, tablets, and computers to communicate with it. It has 6 sensors, including an ultrasonic sensor for measuring distance, a microphone, an accelerometer, and a temperature sensor.
The robot also has multi-color LEDs that can be programmed. It also has a rechargeable battery. More information is available here.