https://www.theregister.co.uk/2019/11/07/microsoft_react_native/ > Ignite Microsoft has hinted that cross-platform development framework React Native is a key solution to the problem of writing applications that span both Windows and mobile. > Cross-platform development is critical for Microsoft since both first-party and third-party apps accessing Office 365 or Azure services need to run on iOS and Android as well as on Windows. Underlining the point, the company has announced Surface Duo, a dual-screen Android device expected towards the end of next year.