Google will start new search algorithm tomorrow 04/21/2015, any website is not mobile friendly will drop down in search ranking.
Google will take into consideration how is the website well optimized for Mobile, thats mean business without good mobile design will suffer.
The new google changes is help user to find the search results formatted for their devices.
The Responsive Design:
Responsive design been around for a while now, Responsive is when your website will scale according to the user device or screen size in a way that providing the best experience possible to a large range of screen sizes. So many open sources are now supporting responsive design by default, and there are a lot of third party tools and frameworks out there as well to integrate with your website and make it responsive like (Bootstrap my favorite front-end framework).
Google estimate that 50% of searches are conduct on Mobile, so if you have online business or website there is 50% chance that users will search for it on their mobile devices and chances are if your website not mobile friendly the user will not find you!.
I can help you re-design your website and make it Google and Mobile friendly, don’t you hate to lose your search engine ranking that you build for years?