The Sphero is great and is fun. It is an iPhone or Android needs to get even games. Under Windows Phone There are no games, but only one control app for the ball. The mobile phone requires Bluetooth. You should make sure that there are now the Sphero 2.0 is the next version of Robotter ball. The new version is faster and much brighter lights. In the version 1, only half of the ball is illuminated. Of course, is also somewhat dependent on the ambient brightness. I bought the program my Sphero. There are SDKs for all mobile devices. Just drop by the manufacturer. Praiseworthy is also the manufacturer offers "retreaded" Spheros and thus something good for the environment is doing.