MiracleSight is a screensaver thatmirrors what is in front of your computer. It watches and if it detects motion through an iSight or other camera, and reacts by drawing bubbles where the motion is happening, playing a sound (e.g. a GarageBand loop) or speaking a phrase of your choice using Mac OS X speech synthesis. You have for yourself for the "Wow!" effect.
Mac OS X 10.3 or later, QuickTime 6.4 or later, QuickTime compatible video input source (Apple iSight, FireWire DV camera, Firewire Webcam, USB camera with driver).
*Previously available here