I have read a developer complained that Windows Phone/Mobile development was the most annoying one (foobar2000 developer, he was developing for Windows 10 Mobil

I have read a developer complained that Windows Phone/Mobile development was the most annoying one (foobar2000 developer, he was developing for Windows 10 Mobile). Also the closed source nature of Windows (Microsoft only open Windows Phone source code to Nokia with Windows Phone 8) makes Nokia phones hard to differentiate, the gap between Windows Phone releases, as the usual Windows releases was 3 years apart while Android was improving every year.