dude, you are dreaming if you think apple is going to win the server market from RHAT.
Linux is winning the Unix server market for sure and RHAT has 80% of that share.
Someone WILL make a desktop that is viable for Linux.
And yes Apple will continue to grow. Now that it's OS is Unix. Their advantage is the free development model of BSD. 50K software developers at MSFT to screw up what 100 core developers get right on FreeBSD. Apple has smartly tapped into that rather than fight it.