If you haven't noticed lately, most companies are making announcements about optimizing their popular programs and apps for Windows 10. It ensures that the most important apps are compatible with the new operating system before launch, which is one the 29th. Even a lot of Windows Phone OS apps are getting updated with new features and Windows 10 design elements, despite the fact that Windows 10 Mobile hasn't even been launched yet. It's all good news in any case.
