I recently reviewed the Sphere Ball. Refer to index in review tab above for details. Sphero 2 is currently the latest incarnation but at CES 2014, Sphero 2B is the new robot toy from Orbotix that can move as fast as 14 feet a second. That’s supposedly the equivalent of a 6 minute mile and twice as fast as the Sphero 2.0. The spinning tube has comically rugged tires that allows it to adorably jolt out at breakneck speeds and tackle any surface.
The Sphero 2B is controlled by your iOS or Android device, has a few accessories (like new wheels) and can be programmed so you can create your own robot army. It due on in September 2014.
I will be honest after a few weeks I lost interest in my Sphero Ball and so did my 3 dogs.