The open-source Aeroqua

DailyMotion hosts a cool demo of Beryl, an upcoming window manager for Linux. It borrows liberally from Aqua, Aero and Looking Glass, and adds a touch of open-source exuberance, going ridiculously overboard with themes and 2D or 3D effects.

Provided there's an easy way of disabling the more epilepsy-inducing animations, it does seems like Linux will soon be getting a top-notch window manager of its own.