Xamarin studio New project - MobileApps template does not contain project for all platforms

I installed Xamarin studio on a win 8.1 pc. I was expecting the File-New-Project-MobileApps template to create three separate projects for each of iOS, Droid and WinPhone. I am only seeing the iOS project. Can anyone pls explain to me why I am not seeing the other two projects for Droid and WPhone?
As per my understanding MobileApps template is supposed to support cross platform development.