Today has been proclaimed Black Turtleneck Friday as an homage to Steve Jobs, timed to coincide with today’s launch of the iPhone 4S. I’ve washed my black turtleneck and am wearing it as I test the 4S.

Silly, perhaps, but it’s my way, our way, a way, to acknowledge our appreciation and respect.

I’m not the only one who feels we’ve lost a singular presence in our world. Jobs’ visage graces the covers of nearly every major national periodical — Time, Newsweek, Bloomberg Business Week, Fortune, The Economist, The New Yorker, Rolling Stone, even People, somewhat ironic considered how guarded Jobs was about his personal life. I can’t remember the last time a non-politician or non-performer garnered such widespread regard from the news and business press.

But the world has a short attention span. Jobs is venerated today, but fickle history will be the final judge of Jobs’ memory.