Windows Phone is dead, long live Surface
Perhaps the reason there is no Windowsphone version is that Microsoft sees Surfacephone as The Future.
But it does look pretty bleak for Windows Phone, not only are new apps not being developed for Windows Phone, existing ones are being discontinued. I paid for Flightradar24 and now no longer have it. Even the BBC has discontinued, iPlayer as an app, saying that you can use the browser instead, but that's flakey. When The Today Programme goes quiet I don't know if it's the cellular connection, browser or bluetooth to my headphones which are to blame. I think I'm going to buy an FM radio..