The acceleration is present in Lion and it's more sensitive than in iOS, so you can get through about 5 window heights with a fast flick or go pixel by pixel if

The acceleration is present in Lion and it's more sensitive than in iOS, so you can get through about 5 window heights with a fast flick or go pixel by pixel if you move slow enough. Also if you flick again before the inertia has died down, the acceleration seems to build up, so 3 quick flicks might get you through 20 screens of content. Pretty cool really.