Tim Cook has tried to reassure everyone that there will be “great” new desktops from Apple. The big question, of course, is what will those desktops be? Apple has focused more and more on portable computing, and desktops have been largely neglected. The MacBook has become their mainstay in the PC world. So what can we expect? I don’t know, but I am allowed to guess (and I’m allowed to be wrong, too).