Think your subscribers open your emails on their desktop computers? Think again. 43% of all email gets opened on mobile devices these days —more than desktop or webmail opens. And email is the top reported activity on smart phones, beating out even the act of making phone calls.  Modern marketers send emails with the mobile reader in mind, and responsive templates with built-in mobile smarts make it easier.
-  litmus.com
-  Adobe 2013 Digital Publishing Report: Retail Apps & Buying Habits