Sorry but Jobs had similar things to say about the latest iPhone leading us all to believe something huge was coming. All we got however was an updated iPhone with a few new but under-whelming features. The moral is I wouldn't read much into what Job's says as he'll always be touting his next announcement as "huge" even if it's not.
The first iPod, iPhone and iPad were game changers, the subsequent updates were not. The only revolutionary place that OSX can go is the way of the marketplace/app store and I don't see that happening anytime soon.