I feel the need to comment here. I'll preface this by saying I was a human computer interaction (e.g. usability) researcher for years, not that I am the foremost expert but I do have some background. I think there are a couple reasons why this "reversed scrolling" is a mistake (my opinion only).

First of all the gesture associated with the scrollbar is different from a touch screen interface where you grab and drag. It would correspond more closely to clicking a scrollable screen with a mouse and pulling in an up or down direction. However when you use the trackpad to scroll, there is no grab (click). Intuitively you are controlling the scrollbar, which should operate in the reverse direction.

The second reason is that it simply feels wrong because we are used to the opposite paradigm. I'm not saying there is no room for innovation in interface design. But, why do you think the QWERTY keyboard never changes. It is not necessarily the best design, but it is what we are all used to. And, there is something to be said for consistency.

All that said, Apple usually gets it right. And, one thing I think they did do right was to make this a user preference. So, even the try to change the world, they let you change it back if you prefer.

Just my 2 cents worth...

is there any way i can +1 your post?