The Google Webmaster team announced on Google+ that they will be offering advice, tips and optimization techniques around mobile design options.
Google said:
There are three common configurations of #mobilefriendly sites: Responsive web design, dynamic serving, and separate mobile URLs. Whichever configuration you choose is up to you—Google supports all three. We’ll go into more detail on each of these three methods this week. Here’s a chart of the key differences.
The three methods are responsive web design, dynamic serving, and separate mobile URLs and yes, responsive is the preferred choice by Google, but Google supports all three.
So check the Google Webmaster Google+ page throughout the week to get some tips and advice around implementing these three methods probably.
Forum discussion at Google+.
