As I am really really new to Universal Apps and I am coming from previous experience with WPF and Silverlight I was wondering if there is an approach I could use to take advantage of the .NET 4.5 APIs in an project created as Universal App. I know this might be a stupid question but as the idea of Universal Apps is to be "universal" it bright this thought to my head "Could I create a 'class library' for WPF and use it in an Universal App".
I have been researching this on the web but with no success so decided to test my luck here. Also if anyone could point me to some good resources in getting started with Universal app (for WPF/Silverlight .NET developers) it would be awesome.