Shrugs, Apple created a “brilliantly successful desktop” (though how you can describe something with less than 4% market share as “brilliantly succesful” beats me) because they can dictate the platform far more closely than linux vendors can. And by the way though MacOS-X is based heavily on BSD the rendering core of Safari is actually KHTML (the same core used in Konqueror which is part of the “False Start” (your words) desktop KDE…)