Why not make a universal app that runs on both windows 10 PC as well as mobile? The market for windows 10 PC is only second to windows 7 so there will be plenty of people using it... Please let your developers know?
I guarantee they are always looking at what will provide the best experience for customers. And right now our responsive site that flows seamlessly between desktop, tablet and mobile (and is loaded in by the iOS and Android apps) is delivering that.
But we're big fans of feedback and listening to what customers want. We've passed it along