This is a poorly written article. Linux on the desktop is infamous for relentlessly cloning Windows and OS X. When citing the changes in OS X Lion (while leaving out major changes like the removal of manual document saving) that he believes to be trivial, he repeats "that's not a joke," as if that's a valid enough rationalization for his position that he doesn't need to explain it further.

The source of desktop innovation today is mobile operating systems. He believes that features from mobile OSes are being "forced" onto desktops, without explaining why it's bad to be adopting mobile features. Full-screen display, automatic document saving, and removing the need to manually quit applications are major innovations that simplify desktop computers even more, moving them closer to the long-sought idea of appliance computing.

I'm tempted to think the article was intentionally written as flamebait. The writing is poor, and there are no examples given to explain why exactly Unity and Gnome are so much more innovative. The absolutist claim that Microsoft and Apple have "completely dropped the ball," as if their operating systems haven't changed in 10 years, is just false.

The source of desktop innovation today is mobile operating systems, or more accurately, appliance computing devices that finally remove extraneous aspects of computer interaction (e.g., manual saving, manual quitting, filesystem management, and so on).