Here is my implementation of flick scrolling - dropbox.com/s/t5y5mwucvy8zpqt/flickscrollexample.c3p
Note that this is partially incomplete, as it does not account for "stacking" of flicks to reach faster scroll speeds. To compensate, I've used a deceleration value of 0.97, instead of the standard which I believe to be 0.95.
It should be compatible with the 8 direction behavior with some minor modification, but I haven't tried that.