An Introduction to Xical
Watch Xical's origin: Phillip Richdale, once the brain behind Xical, gave this talk on introduction and working demonstration of Xical using an early version of the Xixal player.
For modern versions of Xical please watch the activities of Active Content AG on their website
Don't forget: You need the free Macromedia Flash Plugin or Player to watch this. For Linux users: the Flash Player/Plugin 6 works as well.