Ok…maybe it isn’t 1:1 in terms of skills/knowledge but consider the age of today. 5 years ago mobile stylesheets were the rave and were dang near required for every mobile device out there. Now? Nope. With Webkit running rampit on smartphones and smartphones becoming the normal end user phone, with the surge of iPhone and Android devices on the market, there is a shift from doing strict mobile development to making sure your site works on the web and Webkit.
This is pretty key and very interesting in terms of the direction our industry is heading right now. Mobile dev’ is not gone though. You still have a need to provide a scaled down version of your site, depending on what it is and depending on whether you’re using some device that can’t deliver the “whole web” or not (lol; yes, that’s a jab), for mobile devices. I much prefer not having to load non-mobile optimized ads or a two-mile navigation when attempting to load a simple blog, hint hint…mine. 😉
Either way…the point of this post is to have web developers now consider the market and device changes bringing more mobile to your web experience. Consider mobile when building your sites.