I assume that’s a big part of it. It’s disappointing though, because there are huge possibilities for user interface improvement in systems like file managers, “office” software, web browsers, image&#x2F;video&#x2F;audio&#x2F;&amp;c. tools, developer tools, and so on, for someone willing to invest serious time and money in getting the core abstractions right instead of chasing shiny new small features.<p>It’s depressing that for example the file manager from BeOS is still better than anything we have in current machines, and that the OS X file manager isn’t fundamentally anything but a mashup of the ones from NeXT and from original Mac, with slightly different chrome.