You would not be able to use that cloud of impersonated device online - Microsoft would see that device connecting multiple times and ban it. And the key would

You would not be able to use that cloud of impersonated device online - Microsoft would see that device connecting multiple times and ban it. And the key would not allow you to jailbrake another Xbox. So at most you might be able to make a PC look like an Xbox, but a PC is more expensive to start with. So unclear exactly what you have accomplished.