NOTE: DeviceStage ready device is not a device that just shows up in Devices and Printers, Its a device that either has a corrent hardware Icon and or expanded device options/controls.
So far, the only DeviceStage ready devices I have are:
Logitech G9 mouse
Xbox 360 Wireless Receiver for Windows
Microsoft Lifecam VX-6000 Webcam
for some unfamilar with DeviceStage, here is an example
List your devices!