Robots have always been cool, no matter what form or medium you find them in, and the Sphero is no exception. It’s equal parts functional, colourful and cute wrapped up in the form of a ball — a ball that you can control with your iOS or Android smartphone (plus iPad and iPod Touch) via Bluetooth. The first one introduced consumers to the concept, but the new Sphero 2.0 has been designed to be better in all respects, from its weight and noise, right down to how seamlessly it works. We took it for a good test run to see how it performed.