Noctl Smile by: Noctl .NET Framework 4.5 This package targets .NET Framework 4.5. The package is compatible with this framework or higher. 484 total downloads last updated 9/29/2013 Latest version: 1.0.8 mvvm Smile is a library to create Windows Store and Windows Phone 8 apps with MVVM design pattern, allowing you to share almost 75% of your code between the two platforms.