[snowwrestler]

I think if we were to go back through Apple keynotes--say, the last decade or maybe 15 years--we would find that the vast majority of keynotes were incremental in nature.

There were a few major innovations--some of which, like the iPod, have an impact that is only visible in retrospect (it was met largely with question marks at the time). Others, like the iPad or watch, have a mixed record since then.

But in terms of groundbreaking, huge, obvious innovation, I think there are probably only a couple keynotes that meet that bar: the iMac, and the iPhone. The former rescued the company and set them on a new path; the latter transformed the entire mobile computing market.

For me, the biggest announcement today was the health stuff. It feels like a thin wedge under the huge load often known as "health IT." I think it's fair to say that so far, the promise of technology to revolutionize health care is mostly unfulfilled. And who knows whether Apple will have a real impact. But the work they are doing now seems to be connecting good technology with the right people.