The Cortana side of things has now been addressed, the Harmon Kardon Invoke now supporting shorter commands. Instead of lengthy sentences, you can now say “Cortana, Turn on the Xbox”. On top of this, Windows Central says the processing time seems faster, for an overall more streamlined experience.
Limitations
There’s also no way to choose which device is your default. The speaker simply prompts you to add your console. That could be a problem for those with multiple Xbox’s in the same room, or who’d prefer other devices to be the default. With Alexa’s in many homes, support like this could go a long way towards delivering on the Xbox’s initial promise. It’s not a feature everyone will utilize, but it does mean you can quickly perform tasks if the controller is away from you or out of battery.