This is the third generation of Lego’s mindstorms robotics kit. It includes what’s included in the previous package – cables, Lego Technic elements, motors, sensors, and a programmable brick. This next generation Lego Mindstorms EV3 platform is build from ground up with education in mind. It is based on feedback from teachers, students from various countries. It’s not totally new but revamped to better cater to the learning needs of the children.
Wired.com has a good article.