What's surprising is that Brad Frost shared this in 2011.

The key points are:

• They are a plethora of devices
• The power of the web is in its ubiquity. The web's superpower is its ability to go to more places than any proprietary solution.
• There is no future proof, but it can be future-friendly
• Content like water: it's fluid
• the mobile web browser is unique because it has native mobile conventions
• Mobile-first and responsive design please
• Native Vs Web are built differently. They both have they strength.
• structured content first
• design for diversity: does hte user have a touch-enabled device? Navigation with mouse and keyboard, D-pad, touch device, ...
• take advatange of the CSS cascade
• progressive enhancement Javascript
• separate sites aren't scalable (m.site.com, tv.site.com)