title: List of .NET classes/methods which are not supported by CoreCLR, Portable, Universal Apps?
body: <p>I really don't understand the last trend that everyone tries to reinvent the wheel or make its own .NET framework profile instead of just making things throw <code>NotSupportedException</code>. There are MS .NET, Portable, WP, Silverlight, Universal Apps and Unity3D - all different frameworks.</p>
  
  <p>I know Unity3D has its "Mono Compatibility" page (which really needs to be updated). Also Mono has <a href="http://go-mono.com/status/" rel="nofollow">http://go-mono.com/status/</a> page.</p>
  
  <p>Is such information available on CoreCLR, Portable and UniversalApps? Where can I find it?</p>
  
  <p>I know that I'm supposed to use the new <code>GetTypeInfo</code> reflection in WinRT but where is the full list?</p>
  
  <p>Also if you know any official publications which describe why they introduce so many frameworks I would like to read it.</p>