That's fine for Apple's business, people who can't figure that out are now a minority, and will probably suck it up and learn like Windows users did, but it feels like Jobs is playing games with Raskin's observation on familiarity -- instead of actually doing research and testing and interaction science, Apple will cough up whatever's cool, and people will eventually develop familiarity with whatever it is once they've bought in on the reputation of the original Mac.
Usability has long been dead on the Mac platform. They touted ease of use, then released a "hockey puck" for the iMac, which has to have been the worst mouse design ever. I say that from personal experience as well as the mountains of complaints from the Mac community. Of couse, Apple was so proud of themselves, they made the "puck" standard on their high-end tower systems, too.
Making interfaces natural is important, but everyone must keep in mind that the computer is still a tool, and you must learn the basics of the tool to use it properly. I don't think my ex-boss could've been any easier to tutor on a Mac than a Windows machine. Intentionally putting restrictions on a tool may force people not to make it overcomplicated, but it usually just ends up making it less useful.
Now, Apple, where's the damned scroll wheel?!
