allnames,
in liqbase on the graffiti wall I have implemented the scrolling to allow both scrolling and selection.

If the selection area is <25 pixels (or some arbitrary figure) when mouseup occurs its taken as if it was a selection (the click event is raised in this instance).

Scrolling is however enabled all the time and happens live, its rare that the 2 distinct actions are misidentified.

This seems to work quite well but I would be nervous about mixing scrolling with zooming, and is the primary reason why I have not implemented the physics type movement within the live graffiti wall (my original idea was to allow physics sketch zooming confined within each day boundary).

this is what I hope to achieve with multiselect and kinetic scrolling.

(example is actually for the tagging selection, but it shows what I mean)