I'm reading up on Scott Hanselman's notes on MVC4

I'm reading up on Scott Hanselman's notes on MVC4 here. The highlights:
 

• Get it here!
   
• Get the opera mobile emulator here.
   
• He touches on CSS media queries:
  
  @media only screen and (max-width: 850px) {
   
• And the viewport HTML5 tag which is new to me:
  
  <meta name="viewport" content="width=device-width">
  
  A mobile browser will scale to fit everything in the viewport tag onto the screen without regard to how big it is.
   
• And now the magic: If you have view labeled whatever.cshtml, you need only create whatever.Mobile.cshtml in the same folder to override the default view in a mobile setting!