Today one of the sites we work with got a message in their Google Webmaster Tools. The message titled “Fix mobile usability issues found on yoursite.com” basically informs the site own that because “These pages will not be seen as mobile-friendly by Google Search, and will therefore be displayed and ranked appropriately for smartphone users.”
So what does this mean? It sure sounds like their will be an algorithm update coming that will start penalizing websites or at least removing them from mobile searches if they are not mobile friendly.
Clearly this is a sign of things to come.
So what should you do? If your site is in a CMS, there are often plugins that can make a mobile friendly version of your site, but if you really want it done right, it is time to move to a responsive design for your website. This means you will basically need a new site, but it sounds like unless you want to be removed from mobile search, it is a good time to invest in a new website.