Hmm.... Yeah... Many of the things listed under the AmigaOS section, other OS have caught up to, or matter less than they used to (fast/small don't matter to me too much, anymore, when 2+ghz PCs w/ 512MB RAM and 80GB disk can be bought for slightly more than pocket change...)
But.... TIDY.
That really does sum up AmigaOS. Everything had a place, and everybody followed simple conventions and put stuff in the proper place. Linux is a great example of a TIDY NIGHTMARE!! Everything has at least 18 possible places, depending on distro, and no one knows where jack-sh!t is! Drives me NUTS!!!