The virtual reality treadmill is designed to be used with Oculus, replacing the controller/keyboard with your own legs for more immersive gaming.
As well as a support harness to stop you walking off the edge, the Omni comes with tailored shoes. Don't expect it to come cheap though - the unit is priced at $499 (about £297, AU$528) before shipping.
First thing we'll be doing with the Omni? This. Definitely this.