Carla Schroder's blog article De-Programming Windows Refugees is really interesting. Obviously it makes the point about getting Windows users to unlearn all the bad habits they have picked up if they want to upgrade to a proper operating system. It's often easier to teach Unix to someone who has never used a computer than a seasoned Windows user...
She goes on to make a more interesting observation. The marketing drones at Microsoft and Apple go on about how "intuitive" their products are, yet when you think about it that's an absurd claim.
Neither the Mac nor Windows are intuitive, and I wish the word "intuitive" would go away entirely because the poor thing is so misused it needs a long vacation. Here is a dictionary definition of intuitive: "Known or perceived by intuition."
What is intuition? "The act or faculty of knowing or sensing without the use of rational processes; immediate cognition."
Some synonyms are clairvoyance, innate knowledge, instinct, premonition, presentiment. Some antonyms are knowledge and reason.
O'Reilly's best selling book isn't anything to do with "hard" Linux but it's "easy" Macs that need manuals: Mac OS X, the Missing Manual....