Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Mobile devices have been influencing desktop software design for several years now. Mostly, I've not been impressed. Either the results are awkward, like GNOME 3, or over-simplified, like Ubuntu's Unity.
I had just about reached the conclusion that the mobile influence represented a step backwards in desktop design -- then I tried KDE's Plasma Active, a desktop designed for touch screen tablets, and all my assumptions were trampled underfoot.
Quite simply, Plasma Active is not only an elegant solution for small screens, but also for screens of any size. By any standards, it's an example of effective desktop design.