A running joke at this years LinuxCon is that "X is the
year of the Linux desktop." Jim Zemlin, head of the conference's
sponsoring organization, The Linux Foundation, started it with his
keynote in noting how often he'd made that prediction and how often
he's been wrong.
The current prediction, which I believe Linus Torvalds made last
night was : "2031! The year of the Linux desktop." Jim Whitehurst,
CEO of Red Hat, has another year in mind for the Linux desktop
though: Never. Oh, and the Windows and Mac desktops? Get ready to
say good-bye to them soon.