@christyprice I love this solution and arrived at something similar for my sites, too. One problem I am running into is essentially the use of Relative Links in the nav menu. So, for example, when users arrive at my site (www.mitchbakker.com) via mobile, they landing page, url slug /home-mobile, is great –but then the primary nav links still point to the url slug /home. So, the user naturally clicks to go "home" at some point, and then they are met with the desktop version of /home.
Any thoughts on how to provide a solution?