What could be better than a powerful unix machine with a beautiful and intuitive GUI? And also "just works" out of the box.
The desktop metaphor is useless and inconsistent with other things like windows. The desk I'm sitting at physically does NOT have windows cluttering it up! Windows are in the wall, not on my desk. I don't know who had the idea that this is in any way intuitive. My desk also doesn't have programs that are connected in some magic way to my documents. A menu is something I use in a restaurant, not at work or when I watch a movie.
These are not Mac specific problems, but the Mac doesn't solve them either. We need a radically different idea of how a system's complexity scales with its growing capabilities. We need to stop confronting people with that old Von Neumann architeture and we have to stop the attempt to mitigate it with with grotesque inconsistent metaphors.
It's intuitive to those of us who grew up with computing. To everyone else, it isn't.
It would be nice if there was some OS that would boot up and nicely display like 4 or 5 choices to do; flickr, email, internet, news aggregation, and storage. Have the system handle everything else and they could actually enjoy it.
I would go so far as to not give the user access to low level storage, but only give them access to their files in the context of specific tasks that used them (unless they were in advanced mode). Email me if you'd like to talk about this more.
On Windows, he never seemed to get the difference between situations calling for left click and those calling for right click, so the single-button mouse was a relief.
I'd do it with a dynamic start page that would let you accomplish everything from within Ubuntu/Firefox in kiosk mode. The design's the hard part, but I have the beginnings of a workable design.