Full review at http://www.redferret.net/?p=46256 . The new Sphero Ollie is the successor to the original popular Sphero robot ball, and while it features the same kind of smartphone controlled fun, it comes with a few new tricks of its own.
For one thing is features changeable tires, which can be swapped out according to the terrain. As with its predecessor, it's controlled by a smartphone app, which also offers a trick pad, as well as straight motion control.
The LED lights are very cool, and with a little practice we can see this becoming a really fun robot. Although with a top speed of 14 mph and a max range of just 30 meters, you'll need to be careful to keep the thing within control range for maximum enjoyment.
More details at http://www.redferret.net/?p=46256 .