This is the GoBalance: a smart balance board by the folks at Particula (makers of GoCube & GoDice). It is a wobble board that combines with your phone for interactive games. It weighs under 2lbs, so you can easily move it around. GoBalance is compatible with iOS and Android devices and has over 12 free games to get you started.
This balance board comes with an advanced 3D sensor that tracks your every move. It supports up to 330lbs of load, so it is suitable for kids and adults. The GoBalance is available in two models: Play & Sport. The Sport model is a bit bigger (15-inch diameter) and thicker. It is designed for more serious balance and coordination training. It also features live bio-feedback and advanced analytics. The standard model can connect to your smart TV. It lasts up to 400 hours on battery.
[where to get it] [official site]