I know I'm late on this, but I wanted to make sure everyone had a chance to see this clip. This is the meat of Steve's Macworld keynote in 60 seconds. The rest of what Steve said was his packaging of this content. This is a fantastic way to see how the outline of his presentation gets expanded to deliver his implicit message: we're Apple and we're doing some amazing stuff.
Perhaps this is one reason why many folks felt a bit let down by his keynote - when you boil it down there really wasn't a whole lot of new things announced.