Gawker creates time-lapse movies using an iSight/DV camera. Images from your camera can be shared, allowing other users to record your image stream. Streams can also be combined to create a time-lapse movie with two locations side-by-side.
Stop-motion movie production software for OS X.
FrameByFrame enables you to create QuickTime movies from pictures taken with any camera/webcam connected to your Mac, including built-in iSight cameras.