Sally_Stitts - 10:38 pm on Feb 20, 2012 (gmt 0)
If you are using AdSense code for mobile, AdSense now requires that you replace ALL your AdSense code before May 1, 2012.
What remains unclear to me is whether or not one must replace their AdSense code, if one is NOT using mobile ("high-end devices"). For instance, iPad AdSense code? Is there an up-to-the-limit maximum screen-width involved?