During the event dedicated to Windows 10 currently in progress, Microsoft announced the future arrival of Universal Apps on Xbox One: it's app (including games) for Windows but that, if developed to support control system via game pad, can be performed without problems even on Xbox One. And that's not all: on Windows and Windows Phone this app "live" in one store where to buy for a unified device means having the other. This leads us to think that this cross-buy option will be valid also for Xbox One, although not yet officially provided by Microsoft.

The event is about half way through, so we will update if will be released more information about it.