I must say the demo is pretty slick and if you're anywhere there, do not miss this chance to see and experience this "Minority Report like UI".
For those of you who haven't heard about lg3d: Project Looking Glass, here's a little something about lg3d from the Project Home:
What if your desktop was actually a 3D environment? What if your CD or movie database became a 3D jukebox? Project Looking Glass is based on Java technology and explores bringing a richer user experience to the desktop and applications via 3D windowing and visualization capabilities. It is an open source development project based on and evolved from Sun Microsystems' Advanced Development division. It supports running unmodified existing applications in a 3D space, as well as APIs for 3D window manager and application development. At the moment, existing application integration is supported for Linux and Solaris x86 platforms. The platform for 3D application development is available for Linux, Solaris and Windows platforms.