
It's almost impossible to measure his impact. My favorite Jobs story is that, after dropping out of college and studying calligraphy in community college, he insisted that his programmers use an array of "fonts" on the new Apple computer. They were outraged. Thanks to Steve Jobs' obstinacy, I now have a choice of writing this tribute in 'Times New Roman' or 'Copperplate Gothic Bold' (along with dozens of other options).
Jobs' influence was not just on technology, but really on world culture—perhaps more than anyone else in the last 50 years. A lot of what we do in our daily lives is in some way linked to an idea that arose in the mind of Steve Jobs.
Most of all, he brought beauty, simplicity and intuitiveness to cold technology. That may be his greatest legacy.