Every week, we feature customized desktops and smartphone home screens submitted by readers are a great use of the customization tools and UI tweaks available for both desktop and mobile operating systems. It helps that those desktops are elegant, informative, and good-looking. 2012 was a great year to customize your desktop or smartphone, and we saw more great-looking and highly-functional setups than we possibly had room to feature. Here's a look back at the most popular featured desktops and home screens of the past year. More »