Interested in building cross platform HTML 5 apps with Visual Studio?

Announced today, The preview release of Visual Studio tooling support for Apache Cordova. This new capability is based on the open source project Apache Cordova, whereby developers can target Android, iOS, Windows Store and Windows Phone 8 from a single project using existing HTML5 and JavaScript skills and code to build apps that take advantage of the native capabilities of the device.

http://msopentech.com/blog/2014/05/12/apache-cordova-integrated-visual-studio/

The preview release of the Multi-Device Hybrid apps for Visual Studio can be downloaded
here and is part of the Visual Studio 2013 Update 2. You can also learn more about this new feature on MSDN.