Even Windows was split into desktop and server variants. IIRC, OS X was briefly offered as a server product before being discontinued, in large part because it

Even Windows was split into desktop and server variants. IIRC, OS X was briefly offered as a server product before being discontinued, in large part because it was awful on server-like loads. Android's UI smoothness is still lagging behind iStuff, and that has Google money behind it. Seems natural that systems optimised for one thing would be bad at others. And unless there appears a compelling and profitable business case for Linux on the desktop/laptops, it's likely better to let the "Year of Linux on the desktop" meme die.