[cosmic_cheese]

In addition to the other answers, when it comes to the Mac they’re not as worried about bringing new people aboard as they are with keeping existing users happy. Keep in mind that some of these users have been on board since the 80s or 90s and so the Apple way of doing things is as natural to them as the Microsoft way of doing things is to the masses. The benefit to suddenly wholeheartedly aping MS all of the sudden is questionable — most Windows users still aren’t going to switch for various reasons (e.g. there’s no Billy’s Bargain Basement $200 Macs or there’s some Windows-only software they need). They’d only be alienating their existing users.