First introduced in Mac OS X Tiger in 2005, widgets changed the way people quickly accessed simple information on their Mac. And though Apple did not create the concept of a widget, it did present them in the best way.
With the press of a button I had access to my portfolio, my Yahoo! news, my local weather, calculators for everything, translators, you name it. Widgets were small, simple, and beautiful. They performed one function and did it exceedingly well. Widget ports created half of the first apps ported to the iPhone (think the Weather app, Calculator app, Clock app, and Stocks app).
So in honor of the widget being partially responsible for the origins of iPhone apps, I'd like to present you with my four favorite ones. I hope you'll list your favorite widgets in the comments section too.