For me it comes down to iTunes - there isn't a good way to make it work on Linux "out of the box" without futzing with a bunch of stuff beneath the covers. If you've got an iPod, iPhone or iPad (which covers most of the people I know), and you want it to "just work" with your computer the way it's supposed to, then stay away from Linux.

So you're saying that time "wraps around", like walking in the same direction around the Earth until you reach the same point? If that's the case, wouldn't 1 second before the big bang or beginning of time just be the last second of the universe? Not that I'll be alive that long, but it kinda makes the universe's lifetime sound like it's on a repeat loop.