I developed native iOS and Android based applications with a dot net server. I didn't use any cross-platform capabilities. Now I have a new requirement that enforces me to install my application on windows phone and tablet. Do I need to develop a new window based application from scratch? Thanks.
As far as I know, yes. Either you'll have to rewrite the app for Windows Phone specifically or for cross-platform but I don't know any way of running a native Android app on a Windows phone.