Suggestion: Scripts on mobile

https://wordpress.stackexchange.com/questions/229432/enqueue-scripts-based-on-browser-width

Thats a difficult thing. I think the best way would be to use a third-party solution like mobiledetect, which is also used by the WP mobile edition plugin.

Since PHP cannot sraping screen sizes, any workaround would be very laborious, like the one from your link.

But the overall idea is good. I will look into it.. ??