Update to "Antiquated Metaphors"
There is an article at The Tech Zone related to my previous Antiquated Metaphors post. There is also semi-intelligent discussion on Slashdot. The article spends a lot of time talking about how 3D might make more headway into the desktop interfaces. I can't say I'm convinced, but that might only be because I haven't seen a really good demonstration of how it will improve things yet. In any case, its a useful article for extending the discussion.