Freeparking sent this:
Studies have shown that the number of mobile users now exceeds the number of desktop users and on average people are spending two hours per day on their mobile device. To accommodate for this shift in user behaviour, Google have announced they will be changing their mobile search algorithm on 21st April 2015. This change will see only mobile optimised websites appear in the top results for searches made on mobile devices.
Was a little surprising they took such a strong stance of it.