Shake and Etch

The famous magic screen comes as an Android app named Shake and Etch. By shaking the phone/tablet you clean the screen, by rotating the knobs you express your drawing ideas.By rotating a knob, you draw perfect lines. Use two fingers to twist both knobs at the same time to sketch something original. Try your skills and draw a circle! Your drawings are automatically backed-up. Did you draw something interesting? Save it! Want to show it to your friends? Share it!Advantages over the classic toy for kids:- you can save your drawings- you can share your drawings- you can have it always with you- you can change the game borders color- the powder never spills- no permanent artifacts on the old glass