Interactive Graphics in R [Was: Google Summer of Code 2009]

What we need is a more general framework for interactive graphics - this
requires more than just a graphics subsystem - you have to depart from the
concept of graphics objects and include "statistical objects" in the mix
such that the underlying data/statistics etc. can be identified by linking
back though the graphics. This is something we still lack in R --- but I
hope we will get there sooner or later...