At the //build 2015 conference Microsoft announced their development stories for Windows 10. This also includes bridges to reuse existing iOS, Android and other investments for Windows 10. The keynote showed how an existing iOS game was ported to Windows 10 without much effort. The shown one-stop porting solutions for Android and iOS raised the concern why anyone should bother to develop natively for Windows 10 anymore and created quite some confusion and uncertainty in the Windows developer community. A few developers at //build were really worried about those announcements as some of their business is mainly porting iOS and Android apps to Windows Phone.