I wanted to blog this video as it has some really important tips and suggestions as to how to do responsive code with respect mostly to css and take some pressure off media queries. Also I like the fact that typography is taken well in hand and also a good look at SVG images. The ability to scale parts of an image (remember chopping up a rounded box graphic with corners so it scales but doesn't have grotesque scale corners?)
Talk By Michael Riethmuller find him on twitter @MichaelRiethmuller