Review excerpt: Singing Fingers starts with a blank white screen, then you drag your finger slowly across the iPhone, iPod Touch or iPad’s screen. A microphone is required. As you move your fingertip, you notice that your “ink” is powered by sound. The louder you sing, the fatter your line. And the color is associated with the pitch. So if you sing a scale, you make a rainbow pattern. After you’ve made a doodle, trace your finger back over your drawing, to hear your captured audio. If you drag quickly, you make a drawing, to play your sound back. If you trace your finger quickly, the sound plays back quickly, like fast-forwarding through a file. The app was created by doctoral students Eric Rosenbaum (who spoke at Dust or Magic 2009) and Jay Silver of the MIT Lifelong Kindergarten Group. Subscribers, please log into our database using your password to read the full review along with our rating, and see why this received our Editor’s Choice Award.