With Apple's launch of the iPhone 5 today, you might enjoy, as I did, looking back at the 2007 announcement by Steve Jobs of the first iPhone.
It's a model of deference, humility, and carefully managed expectations.
Of course it isn't. It's a model of bluster, hyperconfidence, and master salesmanship.
This guy was good. I guess others have said much the same.
(Updated at 1:17pm EDT with the Apple announcement.)