Mobile design, and in particular mobile UX design for humans as well as search engines, has been one of the main focuses of every new project I'm hired for. I'm certified in mobile UX but that never seems to be enough when facing a client resisting mobile design.
The only real fear of god seems to happen when they bow to whatever Google demands. So, here is more ammo.
Introducing the Mobile Sites certification, for web developers
If you’re a web developer, webmaster, or technical professional working with agencies or in-house to create mobile sites, consider taking the Mobile Sites exam to demonstrate your expertise.
The Mobile Sites certification is a Google accreditation that we offer to individuals who demonstrate proficiency in basic and advanced aspects of mobile website creation.
To become Mobile Sites certified, you'll need to pass the Mobile Sites exam and demonstrate proficiency in basic and advanced aspects of mobile website development.