The Table Drum Augmented Audio application allows iOS device users to turn that acoustic finger pounding into digitized drum sounds, in real time. The app works like a drum pad but instead of tapping the screen to trigger samples, it uses the microphone to listen for taps from your fingers. It’s smart enough to distinguish between 4 different sounds too. So the sound of your finger tapping the dinner table could be used to trigger a high hat sound, while the clink of your fork on your glass could trigger a kick drum sound. It's available now from the iTunes Store for US$3.99 .