At Build 2015, Microsoft has just announced that Windows 10 will be able to run Android and iOS apps. Android and iOS apps developers will be able to port their apps to Windows 10, as universal apps. For example, Android developers will be able to use their Java/C# code to bring their Android apps to Windows 10 as universal apps. On the other hand, iOS developers will be able to bring their Objective-C code apps to Windows 10 as universal apps.
This is indeed a huge addition to the Widows eco-system. It’ll be interesting to see if developers are willing to port their Android/iOS apps to Windows 10 – which will, of course, increase their app’s growth.