The mindstorm robot kit is build with a powerful ARM9 processor and a USB port for WiFi and 4 motor ports. It comes with no less than three interactive servo motors and a nice remote control.
This is a expensive product, but it offers several hours of fun and education. This is edutainment at the finest.
Lego is great at innovation and rethinking. The mindstorm robot kit for kids allows you to build five different robots. Instructions are included.