As of February 8th, 2012 the 3D transforms in this demo only work using Safari 5, Chrome 10+, the WebKit Nightly build, and Firefox 10+. Browsers without 3D acceleration just switch the z-index. You won't lose any functionality!
These cards are using -webkit-transform: rotateY() and rotateX(); with some of the 3D settings: -webkit-transform-style: preserve3d; and -webkit-transform-perspective
This can be done using 100% CSS. Most of this other stuff requires some Javascript, although the animation is CSS.