Microsoft should just combine Windows 8.1 and Windows Phone 8.1, and kill Windows RT
Streamline their product offerings. Make it simple for developers and users alike. That way you get the same Windows experience regardless of what device you are using. Is it too much to ask?
Also RT is a turd anyway and I don't think even MS understands why they made that product (except maybe they panicked with what ARM was doing with Android and iOS and wanted to jump on the action). What is the point of even keeping RT? It is just noise.